OUR ENVIRONMENT: OBJECTIVE/MULTIPLE CHOICE TYPE QUESTIONS for Class 10th Chapter 10 JKBOSE/NCERT
OBJECTIVE/MULTIPLE CHOICE TYPE QUESTIONS
QUESTION 1: The term Ecosystem was introduced by:
(a) Miller (b) Haldane (c ) Tansley (d) Darwin
Ans: (c) Tansley
QUESTION 2. In a food chain, there are:
(a) Bidirectional flow of energy. (b) Zig-zag flow of energy. (c) The multi-directional flow of energy. (d)Unidirectional flow of energy.
Ans: (d) Unidirectional flow of energy.
QUESTION 3. Nature’s cleaners are:
(a) Producers (b) Consumers (c) Decomposers (d) Carnivores
Ans: (c) Decomposers
QUESTION 4. Which of the following groups contain only biodegradable items?
(a) Grass, flowers and plastic (b) Grass, wood and plastic (c) Fruit peels, cake and lime juice (d) Cake, plastic and grass.
Ans: (c) Fruit peels, cake and lime-juice
QUESTION 5. Which of the following constitutes a food chain?
(a) Grass, wheat and mango (b) Grass, goat and human (c) Goat, cow and elephant (d) Grass fish and goat
Ans: (b) Grass, goat and human
QUESTION 6. Which of the following are environment-friendly practices?
(a) Carrying cloth bags to put purchases in, while shopping. (b) Switching off unnecessary lights and fans. (c) Walking to school instead of getting your mother to drop you on her scooter. (d) All of the above.
Ans: (d) All of the above.
QUESTION 7. Which one of the following is an artificial ecosystem?
(a) Pond (b) Crop field (c) Lake (d) Forest
Ans: (b) Crop field
QUESTION 8. In a food chain, the third trophic level is always occupied by:
(a) Carnivores (b) Herbivores (c) Decomposers (d) Producers
Ans: (a) Carnivores
QUESTION 9. Depletion of ozone is mainly due to:
(a) Chlorofluorocarbon compounds (b) Carbon monoxide (c) Methane (d) Pesticides
Ans: (a) Chlorofluorocarbon compounds
QUESTION 10. Disposable plastic plates should not be used because:
(a) They are made of materials with lightweight (b) They are made of toxic materials (c) They are made of bio-degradable materials (d) They are made of non-biodegradable materials
Ans: (d) They are made of non-biodegradable materials