Global warming refers to the rise in average … on earth.
a) rainfall
b) temperature
c) air speed
d) all of these
Global warming is mainly caused by;
NTS PST(2016/2017)
a) carbon dioxide
b) carbon monoxide
c) nitrogen dioxide
d) nitrogen monoxide
e) sulphur trioxide
Global warming is mainly caused by:
NTS PET24/08/2019 (1:30)
a) oxides of sulfur
b) oxides of nitrogen
c) carbon dioxide and methane
d) carbon monoxide
Burning of fossil fuel causes:
a) global warming
b)air pollution
c) both a and b
d) none of these
Global warming could affect…………….........
a) Food production
b)Climate
c) Melting of glaciers
d) all of them
Greenhouse effect is related to………………..
a) Green tree on house
b) Grasslands
c) Global warming
d) Greenry
