Page 1 - Cl8-Bio_CBQ_Conservation of plants and animals

SAI International School
Subject – Biology, Class-VIII
Topic- Conservation of plants and animals
Competency Based Worksheet

SL. No Question
1. Now a days major threat to the wild animal is due to –
(a) Afforestation
(b) Industrialization
(c) Global warming
(d) Deforestation
2. Trees take many years to reach maturity. Paper is made from wood pulp of trees. As
more people are using recycled paper, fewer trees would be cut down. Which of these
graphs shows the result that would be obtained after a few years of carrying out this
act of conservation?

(a)

(b)

(c)

(d)

3. A farmer is advised to use crop rotation and mixed farming. How does this help in
conservation?
a) Increases water use
b) Causes soil pollution
c) Maintains soil fertility
d) Promotes pest growth
4. Read the given statements and select the option which correctly fills the blanks
(i) Red Data Book contains record of ____.
(ii)____is the number and variety of plants, animals and other organisms that exist on
Earth