Conservation of Plants and Animals Worksheet-3

Conservation of Plants and Animals Worksheet-3

1. Which are the factors that pose a great threat to biodiversity?

(a) Habitat destruction

(b) Disturbance and introduction of alien species

(c) Man's interference with nature

(d) All of these

2. Which of the following is a consequence of Man's interference with nature?

(a) Increase in natural resources

(b) Biological imbalance

(c) Increase in the ozone layer

(d) Reappearance of some extinct species

3. What is a National Park?

(a) An area which is strictly reserved for improvement of wild life

(b) An area where grazing and cultivation are permitted

(c) A park where the whole nation can have picnics

(d) A park which can be privately owned

4. Which of the following are examples of Man's interference with nature that has upset the biological equilibrium?

(a) Afforestation

(b) Recycling of paper

(c) Poaching endangered animals

(d) Rain harvesting

5. Species which are going to enter the endangered category are called:

(a) Endangered species              (b) Rare species

(c) Vulnerable species                 (d) Fossil species

6. Energy flow in an ecosystem is:

(a) Multidirectional                     (b) Unidirectional

(c) Bidirectional                           (d) circular

7. Which of the following is the biodiversity hot spot?

(a) Oceans         (b) Rivers          (c) Deserts         (d) Forests

8. What are the control methods that are to be adopted to restore balance in the ecosystems?

(a) Rain water harvesting for conservation and management of water

(b) Conservation of ocean resources and preservation of marine life

(c) Public awareness programmes concerning conservation of wild life

(d) All of these

9. Which of the following is NOT suitable for the conservation of tigers?

(a) Set up sanctuaries to protect the animals

(b) Establish forest reserve

(c) Establish more recreational and tourist centres in the forest

(d) Increase public awareness on the effects of indiscriminate hunting on the animals

10. Which of the following is NOT the reason for the fall in biodiversity?

(a) Deforestation                          (b) Green revolution

(c) Hunting                                    (d) Environmental pollution

Answer Key:

(1)-(d); (2)-(b); (3)-(a); (4)-(c); (5)-(c); (6)-(b); (7)-(d); (8)-(d); (9)-(c); (10)-(b)