Contents

Burning of fossil fuel causes:
a) air pollution                     

b) global warming
c) both a and b                    

d) none of these

b

Global warming could affect…………….........
a) Food production                            

b) Climate
c) Melting of glaciers          

d) all of them

d

Greenhouse effect is related to………………..
a) Green tree on house       

b) Grasslands
c) Global warming                            

d) Greenry

c

Checking of re radiating heat by atmospheric carbon dioxide, dust, methane, ozone is known as….
a) solar effect                      

b) ozone layer
c) 
greenhouse effect          

d) none of these

c

Which of the following is not a major green house gas?
a) carbon dioxide                               

b) methane
c) water vapour                   

d) ozone

d

Greenhouse effect is responsible for:
NTS PST–P-2----2015
a) melting of glaciers          

b) rising sea level
c) dramatic climate change              

d) all of these

d