Samacheer Class 6 Social Science - Understanding Disaster

Disaster can be classified as natural and man-made disaster.
Natural disaster: Earthquakes, Volcanoes, Tsunami, Cyclones, Floods, Landslides, Avalanches, Thunder and lightning.
Man made disaster: Fire, Destruction of building, Accidents in industries, Accident in transport, Terrorism, Stampede.

The Divine Theory of Kingship was practised by the Gupta rulers.
The king is the representative of God on earth. He is answerable only to God and not to anyone else.

In our State, Northeast Monsoon season starts from October. It will continue till December.
Every year, during this Northeast Monsoon season, low pressure depressions are formed in the Bay of Bengal.
The low pressure depressions are then transformed into cyclones and hit the coastal districts.
Heavy rain follows the depressions and cyclones.
Hence, Chennai, Cuddalore and Cauvery delta are often affected by floods

Landslide
The movement of a mass of rocks, debris, soil etc., down slope is called landslide.
Avalanches
A large amount of ice, snow and rock falling quickly down the side of a mountain is called an Avalanches.

Prashasti is a Sanskrit word, meaning communication or in praise of.
Court poets flattered their kings listing out their achievements.
These accounts were later engraved on pillars so that the people could read them.

Samudragupta was a great general and he carried on a vigorous campaign all over the country.
He defeated the Pallava king Vishnugopa.
He conquered nine kingdoms in northern India.
He reduced 12 rulers of southern India to the status of feudatories and to pay tribute.
He received homage from the rulers of East Bengal, Assam, Nepal, the eastern part of Punjab and various tribes of Rajasthan.

Classification of land during Gupta period.
Kshetra – Cultivable land
Khila – Wasteland
Aprahata – Jungle (or) Forest land
Vasti – Habitable land
Gapata saraha – Pastoral land

From the earlier tradition of rock-out shrines, the Guptas were the first to contruct temples.
These temples, adorned with towers and elaborate carvings, were dedicated ‘ to all Hindu deities.
The most notable rock – cut caves are found at Ajanta and Ellora, Bagh and Udaygiri.
The structural temples built during this period resemble the Dravidian style.

Harsha himself was a poet and dramatist.
Around him gathered a best of poets and artists.
His popular works are Ratnavali, Nagananda and Priyadharshika
His royal court was adorned by Banabhatta, Mayura, Hardatta and Jayasena.

(i) Weather forecasting, Tsunami early warning system, cyclonic forecasting and warning provide necessary information. This information help in reducing risks during disasters.
(ii) School Disaster Management Committee, Village Disaster Management Committee, State and Central government institutions take mitigation measures, together during disaster.
(iii) Newspaper, Radio, Television and social media bring updated information and give alerts on the vulnerable area, risk preparatory measures and relief measures including medicine.

(a) the availability of gold mines in the kingdom
(b) the ability of the people to work with gold
(c) the prosperity of the kingdom
(d) the extravagant nature of kings.
(c) the prosperity of the kingdom

Invention of Zero and the cosequent evolution of the decimal system to the modern world.
Aryabhatta explained the true causes of solar and lunar eclipses. He was the, first Indian astronomer to declare that the earth revolves around its own axis.