What happened to Andaman and Nicobar islands during Tsunami? [V. Imp.]
Parts of these islands were submerged under water during Tsunami.
Give an account of the composition of atmosphere. Also discuss the importance of the components. [V. Imp.]
Answer the following questions briefly.
(a)What are the four major domains of the earth?
(b)Name the major continents of the earth.
(c)Name the two continents that lie entirely in the Southern Hemisphere.
(d)Name the different layers of atmosphere.
(e)Why is the earth called the ‘blue planet'?
(f ) Why is the Northern Hemisphere called the land Hemisphere?
(g) Why is the biosphere important for living organisms?
Fill in the blanks with appropriate words to complete each sentence:
(i) The South Pole lies almost at the centre of………………..
(ii) Africa is the second largest continent after ……………..
(iii) The world's longest river the Nile flows through ………………
(iv) The hydrosphere comprises water in the form of………………. , water and ………….
(v) The Arctic Ocean is connected with the Pacific Ocean by a narrow stretch of shallow water known as ……………
(vi) The Pacific Ocean is …………. in shape.
(vii)’ The Coastline of Atlantic Ocean is highly ……………….
(viii) Europe lies to the …………. of Asia.
Fill in the blanks.
(a)The deepest point on the earth is ……….. in the Pacific Ocean.
(b)The……… Ocean is named after a country.
(c)The……… is a narrow contact zone of land, water and air that supports life.
(d)The continents of Europe and Asia together are known as…………….
(e)The highest mountain peak on the earth is…………….
Collect pictures of expeditions to the Himalayas. Write about the kind of equipment carried by the climbers for protection against sunshine, temperature and the lack of air.
State whether these sentences aretrue (T) or false (F).
(i) The shape of the Pacific Ocean is almost triangular.
(ii) A veiy small part of Africa lies in the Northern Hemisphere.
(iii) The level of seawater remains the same everywhere.
(iv) Air moves from low pressure to high pressure.
(vi) Carbon dioxide is an important constituent of air.
(vii) The atmosphere is composed mainly of nitrogen and oxygen.