The most important sources of water for agriculture in arid region is……..
a) springs
b) sea water
c) glaciers
d) rainfall
Sewage waste can be used for…due to high organic content plant nutrients.
a) drinking
b) bathing
c) washing
d) irrigation
The river……..is the main sources of water in Pakistan.
a) Hub
b) Indus
c) Chenab
d) Kabul
Rivers contain…of all water on the planet.
a) 2 %
b) 0.0002 %
c) 0.02 %
d) 12 %
Approximate droplet size of the drizzle is…
a) 0.5-5 mm
b) 5 mm
c) less than 0.5 mm
d) 6 mm
Which one of the following is the largest dam?
a) Hub dam
b) Mangla dam
c) Rawal dam
d) Khanpur dam
