Class 9 Science Important Questions (Chapter-wise)

(a) Spring balance (b) Beam balance (c) Physical balance (d) Digital balance Answer: (a) Spring balance

Instrument Used For Screw gauge Coins Vernier caliper Cricket ball Beam balance Vegetables Digital balance Gold ornaments

(a) mass (b) weight (c) time (d) length Answer: (d) length

(a) 100 quintals (b) 10 quintals (c) 1/10 quintals (d) 1/100 quintals Answer: (b) 10 quintals

False. The statement is incorrect. The SI unit of electric current is ampere (A), not kilogram. Kilogram is the SI unit of mass. Electric current measures the flow of electric charge through a conductor, and it is measured in amperes using an ammeter. This is one of the seven fundamental SI units in the International System of Units.

(a) mm < cm < m < km (b) mm > cm > m > km (c) km < m < cm < mm (d) mm > m > cm > km Answer: (a) mm < cm < m < km

(a) a real force (b) the reaction force of centripetal force (c) a virtual force (d) directed towards the centre of the circular path Answer: (c) a virtual force 2 II. Fill in the Blanks 0 questions Speed is a scalar quantity whereas velocity is a vector quantity. The slope of the distance-time graph at any point gives speed . Negative acceleration is called retardation or deceleration . Area under the velocity-time graph shows displacement . 3 III. State Whether True or False 5 questions If false, correct the statement. <div

False Correct Statement: If the velocity-time graph is a straight inclined line, the displacement-time graph will be a curve because the body is uniformly accelerated. Correction made: Original answer marked as True was incorrect.

(a) velocity of the moving object (b) displacement covered by the moving object (c) speed of the moving object (d) acceleration of the moving object Answer: (b) displacement covered by the moving object <div

False. The statement is incorrect. The motion of a city bus in heavy traffic is an example of non-uniform motion, not uniform motion. In heavy traffic, a bus constantly changes its speed and direction as it accelerates, decelerates, and turns to navigate through congested roads. Uniform motion occurs when an object travels equal distances in equal intervals of time at a constant velocity. Since a city bus in heavy traffic does not maintain constant velocity, its motion is non-uniform. …

True. Acceleration can indeed have a negative value. Negative acceleration, also called deceleration or retardation, occurs when an object's velocity decreases over time. For example, when a moving car applies brakes, its velocity decreases in the direction of motion, resulting in negative acceleration. Mathematically, if the change in velocity is negative, the acceleration will be negative. Negative acceleration does not mean the object is moving backward; it simply indicates that the velocity is decreasing in the chosen positive direction.

(a) Motion of the Earth around the Sun (b) Motion of a toy train on a circular track (c) Motion of a racing car on a circular track (d) Motion of the hour hand on a clock dial Answer: (c) Motion of a racing car on a circular track

(a) more liquid is displaced (b) more weight of liquid is displaced (c) pressure increases with depth (d) All the above Answer: (c) pressure increases with depth

Explanation: Pressure is given by: $$P = \frac{F}{A}$$ Where: (P) = Pressure (F) = Force (A) = Area When the same force acts on a smaller area, pressure increases. Example: A nail has: a pointed end (small area) a flat head (large area) The pointed end easily penetrates wood because pressure is greater at smaller area.

(a) decreases (b) increases (c) remains same (d) may increase or decrease Answer: (b) increases Pressure decreases upward, so the air bubble expands.

(a) density (b) pressure (c) velocity (d) mass Answer: (a) density

(a) increased pressure lowers the boiling point (b) increased pressure raises the boiling point (c) decreased pressure raises the boiling point (d) increased pressure lowers the melting point Answer: (b) increased pressure raises the boiling point

(a) temperature (b) geometry (c) nature of material (d) all the above Answer: (d) all the above

True. Electric current can produce a magnetic field. When electric current flows through a conductor, it generates a magnetic field around the conductor. This phenomenon is called electromagnetism. The strength and direction of the magnetic field depend on the magnitude and direction of the current. This principle is demonstrated in electromagnets, where coiling a current-carrying wire around an iron core creates a strong magnetic field. The relationship between current and magnetic field is described by Ampere's law. …

(a) presence of electron (b) presence of proton (c) absence of electron (d) absence of proton Answer: (c) absence of electron

(a) creates electric charge (b) transfers electric charge (c) either (a) or (b) (d) neither (a) nor (b) Answer: (b) transfers electric charge Charges are not created; electrons are transferred.

(a) Joule heating (b) Coulomb heating (c) Voltage heating (d) Ampere heating Answer: (a) Joule heating

(a) weber (b) weber/metre (c) weber/metre² (d) weber·metre² Answer: (c) weber/metre² Also written as: $$Wb/m^2$$ SI unit name: Tesla (T) 2 II. Fill in the Blanks 0 questions The SI unit of magnetic field induction is tesla . Devices used to convert high alternating voltage to low alternating voltage are transformers . An electric motor converts electrical energy into mechanical energy . A device used for producing electric current is a generator . 3 III. …

# Principle A current-carrying conductor placed in magnetic field experiences force. Direction is determined using Fleming’s Left Hand Rule. # Construction Main parts: Armature coil Field magnet Split ring commutator Carbon brushes Battery # Working Current passes through armature coil. Opposite sides of coil experience opposite forces. Coil rotates. Split ring reverses current every half rotation. Continuous rotation is produced. Thus electrical energy converts into mechanical energy.

(a) AC only (b) DC only (c) Both AC and DC Answer: (a) AC only

(a) field magnet (b) split rings (c) slip rings (d) brushes Answer: (d) brushes Slip rings rotate with the coil, while brushes collect current. <div

True. A generator converts mechanical energy into electrical energy. When a coil rotates in a magnetic field, the changing magnetic flux through the coil induces an electromotive force (EMF) according to Faraday's law of electromagnetic induction. This induced EMF drives electrons through an external circuit, producing electric current. The mechanical energy used to rotate the coil is thus transformed into electrical energy that can be transmitted and used in various applications.

(a) Motor (b) Battery (c) Generator (d) Switch Answer: (a) Motor

This statement is true. The brilliance and sparkle of diamonds are primarily due to total internal reflection of light within the diamond crystal. When light enters a diamond from air, it travels through the dense crystal structure. Due to the high refractive index of diamond, which is approximately 2.42, light undergoes total internal reflection when it strikes the internal surfaces of the diamond at angles greater than the critical angle. This critical angle for diamond is very small, approximately 24 degrees. …

Given: $$\mu = 2.41$$ Using: $$\mu = \frac{c}{v}$$ $$v = \frac{3 \times 10^8}{2.41}$$ $$v = 1.24 \times 10^8 m/s$$ Conclusion: Speed of light in diamond is much lower than in vacuum.

(a) (0^\circ) (b) (45^\circ) (c) (90^\circ) Answer: (b) (45^\circ) Correction made: Original answer (90^\circ) was incorrect. A ray bends when it enters another medium obliquely. At (0^\circ), its speed changes but it does not deviate from the normal. <div

(a) concave mirror (b) plane mirror (c) convex mirror Answer: (a) Concave mirror

(a) concave mirror (b) convex mirror (c) plane mirror Answer: (b) Convex mirror <div

(a) solar cell (b) solar cooker (c) thermometer (d) thermos flask Answer: (d) thermos flask 2 II. Fill in the Blanks 0 questions The fastest mode of heat transfer is radiation . During daytime, air blows from sea to land . Liquids and gases are generally poor conductors of heat. The fixed temperature at which solid changes into liquid is called melting point . 3 III. Assertion and Reason Type Questions 3 questions <div

Hot Air Balloon Heated air becomes lighter and rises, lifting balloon upward. Sea Breeze Daytime: Land heats faster Hot air rises above land Cool sea air moves toward land This is called: Sea Breeze Land Breeze Night: Sea remains warmer Warm air above sea rises Cool land air moves toward sea This is called: Land Breeze Chimneys Hot gases rise upward due to convection. Hence chimneys are built tall.

(a) heat (b) work (c) temperature (d) food Answer: (a) heat

(a) Fahrenheit (b) joule (c) Celsius (d) kelvin Answer: (d) kelvin <div

(a) Both rods (b) Rod-2 (c) Rod-1 (d) None Answer: (c) Rod-1 Greater cross-sectional area allows faster heat conduction.

(a) liquids (b) gases (c) solids (d) vacuum Answer: (c) solids

Procedure Take two long identical tubes. Place them near reflecting wall. Place ticking clock near one tube. Listen through second tube. Adjust tube positions for maximum sound. Observation Measured angles satisfy: $$\angle i = \angle r$$ Conclusion Laws of reflection of sound are verified. Angle of incidence = angle of reflection Incident sound, reflected sound and normal lie in same plane

(a) stretched strings (b) stretched membranes (c) air columns (d) metal plates Answer: (d) metal plates

(a) only if no moisture is present (b) if particles move from one place to another (c) if both particles and disturbance move (d) if disturbance moves Answer: (d) if disturbance moves Particles vibrate about mean position; disturbance travels.

(a) wax (b) vacuum (c) water (d) empty vessel Answer: (b) vacuum Sound cannot travel through vacuum.

(a) 13.7 billion years ago (b) 15 million years ago (c) 15 billion years ago (d) 20 million years ago Answer: (a) 13.7 billion years ago Modern estimate is approximately 13.8 billion years.

First Law – Law of Ellipses Planets revolve around Sun in elliptical orbits. Sun lies at one focus. Second Law – Law of Equal Areas Line joining planet and Sun sweeps equal areas in equal intervals of time. Third Law – Law of Harmonics $$T^2 \propto R^3$$ Square of orbital period is proportional to cube of semi-major axis.

(a) Tycho Brahe (b) Nicolaus Copernicus (c) Ptolemy (d) Archimedes Answer: (b) Nicolaus Copernicus

(a) Mercury (b) Saturn (c) Uranus (d) Neptune Answer: (a) Mercury

(a) meteor (b) star (c) planet (d) asteroid Answer: (d) asteroid Ceres is also classified as a dwarf planet.

This statement is false. Aspirin is a compound, not a mixture. Although aspirin does contain carbon, hydrogen, and oxygen in fixed proportions, the presence of elements in fixed proportions is a characteristic of compounds. In aspirin, these elements are chemically bonded together in a specific arrangement to form the aspirin molecule (acetylsalicylic acid). The key distinction is that in a compound, the constituent elements are chemically combined through covalent bonds in a definite ratio that cannot be altered without breaking the chemical bonds. …

Elements Compounds Made of only one kind of atom; some elements exist as molecules, such as O₂ Made of two or more different elements chemically combined in a fixed ratio Cannot be broken down into simpler substances by chemical methods Can be broken down into simpler substances by chemical methods Smallest particle may be an atom or molecule Smallest particle may be a molecule or formula unit Example: Copper (Cu), Oxygen (O₂) Example: Water (H₂O), Carbon dioxide (CO₂)

(a) Filtration (b) Sedimentation (c) Decantation (d) Centrifugation Answer: (d) Centrifugation

(a) Common salt (b) Juice (c) Carbon dioxide (d) Pure silver Answer: (b) Juice

(a) Heterogeneous mixture (b) Compound (c) Homogeneous mixture (d) Suspension Answer: (c) Homogeneous mixture

False Correct Statement: Using formula: $$2n^2$$ For L-shell: $$2(2)^2 = 8$$ Maximum electrons = 8

Main Postulates (i) Electrons revolve around the nucleus only in certain allowed circular orbits called stationary orbits. (ii) Electrons do not emit radiation or lose energy while moving in a stationary orbit. (iii) The angular momentum of an electron in an allowed orbit is quantised. $$mvr = \frac{nh}{2\pi},\quad n = 1,2,3...$$ (iv) Electrons absorb or emit energy only when they jump between allowed orbits. $$\Delta E = h\nu$$ (v) Shells are represented as: $$K,L,M,N$$ or $$n = 1,2,3,4...$$ Energy Levels K-shell has least energy Energy increases outward

(b) (40 Ar, 18) and (14 N, 7). Explanation: Other pairs are isotones (same number of neutrons). The pair in (b) do not share the same neutron count, so they are the odd pair.

(a) ion (b) isotope (c) isobar (d) another element Answer: (b) isotope

(a) protons and electrons (b) only neutrons (c) electrons and neutrons (d) protons and neutrons Answer: (d) protons and neutrons

(a) 7 groups and 18 periods (b) 18 groups and 7 periods (c) 17 groups and 8 periods (d) 8 groups and 17 periods Answer: (b) 18 groups and 7 periods

This statement is true. Group 17 elements are indeed called halogens. The term halogen comes from Greek words meaning salt-former, which reflects their tendency to form salts with metals. The halogen group includes fluorine, chlorine, bromine, iodine, and astatine. These elements are highly reactive non-metals with seven valence electrons in their outermost shell, giving them a valency of minus one. Halogens readily gain one electron to achieve a stable noble gas configuration. They form diatomic molecules in their elemental state and are known for their strong oxidizing properties. …

(a) Modern periodic law (b) Hund’s rule (c) Law of octaves (d) Pauli’s exclusion principle Answer: (c) Law of Octaves <div

(a) atomic numbers (b) atomic masses (c) similarities (d) anomalies Answer: (a) atomic numbers

This statement is true. Newlands' law of octaves was based on the atomic masses of elements, where he arranged elements in order of increasing atomic mass and observed that every eighth element had similar properties. However, this arrangement had limitations and did not work well for heavier elements. The modern periodic table, developed by Mendeleev and later refined, is based on atomic numbers rather than atomic masses. Atomic number represents the number of protons in an atom and is a more fundamental property than atomic mass. …

(a) Simple molecular species containing coordinate covalent bonds are generally non-ionic and poor conductors. Coordination compounds that form ionic salts may contain complex ions and can conduct electricity in aqueous solution. (b) Ionic bond is stronger than hydrogen bond. (c) Covalent bonds form by sharing of electrons between atoms. In a coordinate covalent bond, the shared pair comes from one atom. (d) Correct statement. Loss of electrons → oxidation Gain of electrons → reduction (e) Electrons not involved in bonding are called: Lone pair (non-bonding) electrons

(a) Physical State Coordinate-bonded molecular compounds can be solids, liquids or gases. Ionic coordination complexes are usually crystalline solids. (b) Electrical Conductivity Molecular coordinate compounds are poor conductors. Ionic coordination complexes conduct in molten state or in aqueous solution when ions are present. (c) Melting Point Molecular coordinate compounds have low to moderate melting points. Ionic coordination salts generally have higher melting points. (d) Solubility Molecular coordinate compounds may dissolve in non-polar or weakly polar solvents depending on structure. …

(a) 2 (b) 4 (c) 3 (d) 5 Answer: (b) 4 <div

(a) potassium (b) calcium (c) fluorine (d) iron Answer: (c) fluorine <div

(a) ionic bond (b) covalent bond (c) coordinate bond Answer: (a) ionic bond

Sulphuric acid is called the King of Chemicals because of its extensive and diverse applications in the chemical and industrial sectors. Sulphuric acid is widely used in the manufacture of numerous other chemicals and industrial products, making it one of the most important chemicals in the world. It is used in the production of fertilizers, particularly in the manufacture of superphosphate fertilizers. Sulphuric acid is also essential in the refining of petroleum, the production of dyes and pigments, the manufacture of explosives, and in metal processing industries. …

$$Zn + 2HCl \rightarrow ZnCl_2 + ___\uparrow$$ Options: (H_2) (O_2) (CO_2) Answer: $$H_2$$

citric acid ascorbic acid Answer: Citric acid Orange also contains ascorbic acid, but the characteristic organic acid in orange is citric acid.

green red orange Answer: Red

# (i) Oxidation / Combustion Carbon reacts with oxygen. $$C + O_2 \rightarrow CO_2 + \text{heat}$$ Incomplete combustion: $$2C + O_2 \rightarrow 2CO$$ Methane Combustion $$CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O + \text{heat}$$ # (ii) Reaction with Steam $$C + H_2O \rightarrow CO + H_2$$ Mixture formed is called: Water Gas # (iii) Reaction with Sulphur $$C + 2S \rightarrow CS_2$$ (Carbon disulphide) # (iv) Reaction with Metals Carbon forms carbides. Example: $$W + C \rightarrow WC$$ (Tungsten carbide) Correction made: Spelling corrected from “Tungesten”.

She should buy bottle with: Resin Code 5 (Polypropylene) Reason Safer plastic Heat resistant Less toxic Why Avoid Others? Resin Code 1 Single-use plastic. Resin Code 3 PVC — highly toxic. Resin Code 7 Contains polycarbonate and BPA-related plastics.

(a) isomerism (b) allotropy (c) catenation (d) crystallinity Answer: (b) allotropy

(a) allotropy (b) isomerism (c) tetravalency (d) catenation Answer: (d) catenation Carbon’s tetravalency also contributes significantly.

(a) Polystyrene (b) PVC (c) Polypropylene (d) LDPE Answer: (c) Polypropylene

(a) fertilizers (b) pesticides (c) food colourants (d) preservatives Answer: (b) pesticides

# (i) Acid Dyes Acidic in nature Used for wool and silk Examples: Picric acid Naphthol yellow-S # (ii) Basic Dyes Contain basic groups like: $$-NH_2,\ -NHR,\ -NR_2$$ Examples: Crystal violet Methylene blue # (iii) Mordant Dyes Require mordant before dyeing. Mordants: Aluminium salts Chromium salts Iron salts Example: Alizarin # (iv) Direct Dyes Used directly on cotton and rayon. Example: Congo red # (v) Vat Dyes Used mainly for cotton. Example: Indigo

(a) (10^{-7}) metre (b) (10^{-8}) metre (c) (10^{-6}) metre (d) (10^{-9}) metre Answer: (d) (10^{-9}) metre One nanometre is one billionth of a metre. <div

(a) plant (b) microorganism (c) animal (d) sunlight Answer: (b) microorganism

(a) antipyretic (b) antimalarial (c) antiseptic (d) antacid Answer: (c) antiseptic

(a) Hydra (b) Earthworm (c) Starfish (d) Ascaris Answer: (c) Starfish

# Aquatic Adaptations Eggs are usually laid in water and lack a hard shell. Tadpole larva lives in water and respires through gills. Tadpoles have a tail and streamlined body for swimming. Many amphibians show external fertilization. # Terrestrial Adaptations Adults can live on land. Respiration occurs through lungs and moist skin. Limbs help in hopping, walking and climbing. Eyelids and nictitating membrane protect the eyes. Metamorphosis changes the aquatic tadpole into a land-adapted adult.

(a) Mollusca (b) Coelenterata (c) Echinodermata (d) Porifera Answer: (c) Echinodermata

(a) Porifera (b) Coelenterata (c) Annelida (d) Arthropoda Answer: (b) Coelenterata

(a) Fishes and Amphibians (b) Amphibians and Aves (c) Aves and Mammals (d) Reptiles and Mammals Answer: (c) Aves and Mammals Birds and mammals are warm-blooded (homeothermic).

(a) Axon (b) Nerve endings (c) Tendons (d) Dendrites Answer: (c) Tendons

Intercalary meristems are meristematic tissues found between permanent tissues. They occur: at base of leaves at base of internodes Examples: Grasses Wheat Bamboo Ginger Difference from Other Meristems Meristem Location Function Apical meristem Root and shoot tips Increase in length Lateral meristem Sides of stem/root Increase in thickness Intercalary meristem Between mature tissues Regrowth and elongation Correction made: Intercalary meristem mainly helps elongation, not branch production.

(a) Parenchyma (b) Collenchyma (c) Sclerenchyma (d) None of the above Answer: (a) Parenchyma Correction made: Original answer incorrectly marked “None of the above”. <div

(a) Parenchyma (b) Sclerenchyma (c) Collenchyma (d) None of the above Answer: (b) Sclerenchyma

(a) Sieve elements (b) Vessel elements (c) Trichomes (d) Guard cells Answer: (a) Sieve elements <div

(a) Fruit (b) Seed (c) Flower (d) Stomata Answer: (d) Stomata

# Transpiration Loss of water vapour from aerial parts of plants. # Types of Transpiration (i) Stomatal Transpiration Occurs through stomata. Accounts for: $$80-90%$$ of total transpiration. (ii) Cuticular Transpiration Occurs through cuticle. It contributes about 5-10% of total transpiration. (iii) Lenticular Transpiration Occurs through lenticels in woody stems. It contributes only a very small percentage, about 1% or less of total transpiration.

(a) Phototropism (b) Geotropism (c) Thigmotropism (d) Chemotropism Answer: (c) Thigmotropism <div

(a) (CO_2) is reduced and water is oxidized (b) Water is reduced and (CO_2) is oxidized (c) Both are oxidized (d) Both are produced Answer: (a) (CO_2) is reduced and water is oxidized

(a) Thigmonasty (b) Phototropism (c) Hydrotropism (d) Photonasty Answer: (c) Hydrotropism

(a) Ovary (b) Uterus (c) Testes (d) Fallopian tube Answer: (c) Testes

False. Correct Statement: Hormones are not normally present in significant amounts in glomerular filtrate. The glomerular filtrate contains water, salts, glucose, amino acids, and urea, which are small molecules that can pass through the filtration barrier of the glomerulus. However, hormones are typically large protein molecules or are bound to proteins in the blood, so they cannot pass through the glomerular filter and are retained in the blood. Proteins and blood cells are also absent from the normal glomerular filtrate because they are too large to be filtered. …

(a) Sublingual (b) Lachrymal (c) Submaxillary (d) Parotid Answer: (b) Lachrymal Lachrymal gland produces tears.

(a) carbohydrates (b) proteins (c) fats (d) sucrose Answer: (b) proteins

(a) Epiglottis (b) Glottis (c) Hard palate (d) Soft palate Answer: (a) Epiglottis

(a) Wax coating (b) Contaminated utensils (c) Moisture content in food (d) Synthetic preservatives Answer: (c) Moisture content in food 2 II. Fill in the Blanks 0 questions Deficiency diseases can be prevented by taking balanced diet . Altering natural composition of food is called adulteration . Vitamin D is called sunshine vitamin . Dehydration is based on removal of water . Food should not be purchased beyond its expiry date . AGMARK certifies agricultural and livestock products. 3 III. State Whether True or False 5 questions If false, correct the statement. <div

False Correct Statement: ISI mark certifies industrial products.

(a) Carbohydrates (b) Proteins (c) Vitamins (d) Fats Answer: (c) Vitamins <div

(a) James Lind (b) Louis Pasteur (c) Charles Darwin (d) Isaac Newton Answer: (a) James Lind

(a) Freezing (b) Irradiation (c) Salting (d) Canning Answer: (b) Irradiation

(a) Spawn (b) Mycelium (c) Leaf (d) All of these Answer: (b) Mycelium 2 II. Fill in the Blanks 0 questions Quinine is obtained from Cinchona . *Carica papaya* leaves are used in dengue treatment support. Vermicompost is produced using earthworms and microorganisms. Aquaculture includes culture of prawns, pearls and edible oysters. Largest member in honey bee colony is the queen bee . Formic acid acts as preservative in honey. Polyculture means rearing different fish varieties together. 3 III. State Whether True or False 5 questions If false, correct the statement. <div

True

(a) Pisciculture (b) Sericulture (c) Aquaculture (d) Monoculture Answer: (a) Pisciculture

(a) Jersey (b) Holstein–Friesian (c) Sahiwal (d) Brown Swiss Answer: (c) Sahiwal

(a) *Apis mellifera* (b) *Apis dorsata* (c) *Apis florea* (d) *Apis cerana* Answer: (a) *Apis mellifera* <div

Human activities that disturb the nitrogen cycle include: Excessive use of nitrogenous fertilizers and manure, causing nitrate runoff and eutrophication. Industrial nitrogen fixation, which increases reactive nitrogen in ecosystems. Burning fossil fuels, which releases nitrogen oxides and causes smog and acid rain. Deforestation and land-use change, which alter nitrogen inputs and losses. Discharge of nitrogen-rich wastewater into water bodies.

# Water Cycle Continuous movement of water between earth and atmosphere. (i) Evaporation Water changes from liquid to vapour. Occurs from: oceans lakes rivers (ii) Sublimation Ice directly changes into vapour. Examples: polar ice caps mountain glaciers (iii) Transpiration Plants release water vapour through stomata. (iv) Condensation Water vapour cools and forms clouds. (v) Precipitation Water falls as: rain snow hail (vi) Runoff Rainwater flows into rivers and oceans. (vii) Infiltration Water enters soil. (viii) Percolation Water moves through porous rocks underground.

(a) Biological factors (b) Abiotic factors (c) Biotic factors (d) Physical factors Answer: (c) Biotic factors

(a) Evaporation (b) Condensation (c) Sublimation (d) Infiltration Answer: (c) Sublimation <div

(a) Photosynthesis (b) Assimilation (c) Respiration (d) Decomposition Answer: (a) Photosynthesis

Classroom teaching Business meetings Project presentations Seminars Training programs

(a) Slide show (b) Charts (c) Page (d) Messages Answer: (a) Slide show

(a) Pages (b) Slides (c) Placeholders (d) Messages Answer: (b) Slides

(a) F1 (b) Tab (c) F5 (d) F2 Answer: (c) F5