Conservation of Plants and Animals Worksheet-1

Conservation of Plants and Animals Worksheet-1

1. The totality of genes, species and ecosystems of a region is known as:

(a) Biosphere                                 (b) Biodiversity

(c) Bioconservation                      (d) Biocommunity

2. Uncontrolled deforestation leads to:

I   –  The destruction of habitats

II  –  Landslides

III –  Flooding

(a) I only                                         (b) I and II only

(c) l and III only                            (d) II and III

3. Drought brings about:

(a) flooding

(b) volcanic eruptions

(c) decreased production of food

(d) increased photosynthesis in plants

4. Which of the following is an abiotic component?

(a) Cow                                           (b) Grass

(c) Temperature                           (d) Bacteria

5. Which of the following include all living organisms and all life supporting regions of the earth?

(a) biosphere                                 (b) ionosphere

(c) stratosphere                            (d) lithosphere

6. Which of the following shows a modern technology measures that is used to preserve and conserve the environment?

(a) Practising crop rotation

(b) Using leaded petrol in motor vehicles

(c) Using machines in agricultural industry

(d) Converting industrial wastes into biogas

7. Which of the following are the effects/s is/are caused  due to the mismanagement of timber logging?

I   – Flooding

II  – Soil erosion

III – Growing economy

(a) I and II only                             (b) I and III only

(c) II and III only                          (d) I, II and III

8. Which of the following must be practised to preserve and conserve the environment?

(a) Deforestation                          (b) Recycling

(c) Soil erosion                              (d) Increase in pollution

9. The introduction of exotic species into an area:

(a) helps to conserve wildlife

(b) helps to protect biodiversity

(c) affects native species adversely

(d) helps native species survive

10. Which of the following is/are the advantage(s) of forests?

(a) Forests provide us with oxygen

(b) They protect soil and provide habitat to a large number of animals

(c) They help in bringing good rainfall in neighbouring areas

(d) All of these

Answer Key:

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