Page 1 - 3.Home assignment-(Obj & Subj)- Deforestation causes and consequences .

SAI International School
Subject - Biology, Class VIII
Topic – Conservation of plants and animals
Subtopic – Deforestation: causes and consequences
Module 31

Home Assignment
OBJECTIVE
1 Which of the following is a natural cause of deforestation
(a) Procuring land for cultivation
(b) Making furniture and paper
(c) Using wood as fire wood
(d) Forest fire
2 Which of the following is a manmade cause of deforestation
(a) Severe drought
(b) Making furniture and paper
(c) Volcanic irruption
(d) Forest fire
3 Deforestation increases the incidence of flood because of
(a) Soil erosion
(b) Imbalance of nature
(c) Increase level of carbon dioxide
(d) Infiltration rate of water decreases
4 Deforestation increases the incidence of drought because of
(a) Soil erosion
(b) Imbalance of nature
(c) Water cycle gets disturbed due to global warming
(d) Infiltration rate of water decreases
5 Deforestation leads to global warming because of
(a) Soil erosion
(b) carbon dioxide level increases
(c) Water cycle gets disturbed due to global warming
(d) Infiltration rate of water decreases

SUBJECTIVE
Questions Marks Level
Q1. List out the manmade and natural causes of deforestation. 5 E

Q2. How deforestation leads to desertification? 3 Av
Q3. How deforestation increases the incidence of drought? 1 D