Pakistan has a total area of …………..million hectares.
a) 60.5
b) 68.6
c) 79.6
d) 82.6
Out of 79.6 million hectares about …………of area is currently under cultivation.
a) 10%
b) 27%
c) 43%
d) 62%
How much of the global water supply is found in ocean?
a) less than 28%
b) about 75%
c) about 87%
d) about 97%
Groundwater is defined as: NTS DM -----6/2/2021
a) water below the ground surface
b) water on the ground surface
c) rain water
d) atmospheric water
Toilets drains and waste of chemical industries are the main source of pollution to:
NTS Past -------CT Test
a) underground water
b) Air
c) soil
d) sea
What is the process by which water enters the small pore spaces between particles in soil or rocks?
a) transpiration
b) infiltration
c) precipitation
d) sublimation
