Q43. What is the composition of the Atmosphere?


Q44. Explain the following terms:

         a.   Isthmus


         b.   Wind


         c.   Strait


         d.   Biosphere


         e.   Lithosphere


          f.    Hydrosphere


Q45. Distinguish between the lithosphere and the hydrosphere.


Q46. Why air temperature decreases with increase in height?


Q47. Give reason why biosphere is important for living organisms?


Q48. Write a short note on continent Asia.


Q49. Write some characteristics of the continent - Africa.


Q50. List some features of the Europe continent.


Q51. How is the continent of North America different from that of South America?


Q52. Write short note on

Atlantic Ocean, Artic Ocean and Indian Ocean


Last modified: Thursday, 17 January 2019, 3:15 PM