Between 1900 and 2005, average precipitation increases in part/s?
a) North America
b) South America
c) both a & b
d) none of these
Average precipitation decreases in…….
a) Southern Africa
b) South Asia
c) Mediterranean
d) all of these
In which of the following areas occurrence of floods are more?
a) wetter areas
b) drier areas
c) northern areas
d) southern areas
In which of the following places occurrence of droughts are more?
a) wetter places
b) hot places
c) northern places
d) drier places
Importance of Ozone Layer(اوزون کی تہہ کی اہمیت):
Which of the following gas is naturally present in atmosphere?
a) chlorofluorocarbons
b) ozone
c) ammonia
d) none of these
