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Class VII, Science Respiration in Organisms NCERT Solutions of Textbook Exercise (Important Questions Only) Q.1: Why does athlete breathe faster and deeper than usual after finishing the race?   Solution: An athlete needs more energy during the race and after. Since demand for the energy is high the breakdown of food must be speeded up. This requires more oxygen to be supplied. This is

Class 7, Ncert Cbse Solutions Social Geography - Our Environment Ncert Textbook Exercise Solutions Sample questions on the Chapter 1, ENVIRONMENT Normal 0 false false false EN-US X-NONE X-NONE

NCERT (CBSE) solutions of Class VII Social Science (Geography) Chapter 1 Environment (Important Questions only) Q.1: Answer the following questions.        (i)   What is an ecosystem?      (ii)   What do you mean by natural environment?    (iii)   Which are the major components of the environment?    (iv)   Give four examples of human made environment.      (v)   What is