question_answer8) Tick the correct answer: (i) Which is not a natural ecosystem? (a) Desert (b) Aquarium (c) Forest. (ii) Which is not a component of human environment? (a) Land (b) Religion (c) Community. (iii) Which is a human made environment? (a) Mountain (b) Sea (c) Road. (iv) Which is a threat to environment? (a) Growing plant (b) Growing population (c) Growing crops.View Answer play_arrow
question_answer9) Match the following: (i) Biosphere (a) blanket of air which surrounds the earth. (ii) Atmosphere (b) domain of water. (iii) Hydrosphere (c) our surroundings. (iv) Environment (d) narrow zone where land, water and air interact.View Answer play_arrow
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