CBSE Class 8 Social Science Natural And Man Made Disasters Worksheet

NATURAL AND MAN-MADE DISASTERS

1. Any natural event which is infrequent and is capable of threatening life and property is called _____________________.

2. Natural hazards which are caused by forces originated below the surface of the earth are called ____________________.

3. Natural hazards which are caused by forces originated and work above the surface of the earth are called ____________________

4. The sudden mild or violent shaking of a part of the earth is known as ___________________________________

5. A vent in the earth‟s crust through which molten rocks, gases and steam force their way out to the surface of the earth is known as a ---_______________________________.

6. The neck through which Lava, steam or ashes gust out is called the shaft or ___________________________.

7. The liquid of the volcano, so long as it remains within the surface of the earth is called __________________.

8. Turbulent masses of snow and ice mixed with debris that rush down at high speed from steep mountain slopes are called ________________.

9. A period of unusually prolonged and dry weather in such areas where is otherwise normally expected is known as _____________________.

10. Nuclear disasters can be prevented by ____________________ and nuclear non-proliferation.

11. ______________ help us to adapt and cope with the environment.

12. ___________________ occur due to difference in temperature and pressure of air, over the warm water of the oceans.

13. The Bhopal Gas Tragedy which took place on December 3rd 1984 was one of the example of ______________________.

14. The first symptoms of a chemical leekage are burning sesation and redness in the _______________________.

15. Terrorist attacks are deliberate acts of _____________________.