The earth’s atmosphere contains over _____ % by volume of nitrogen gas:
A.58
B.68
C.78
D.None of these
Category: MISCELLANEOUS Mcqs
About 95% of the energy requirements in Pakistan are met with by the:
A.Nuclear power plants
B.Hdroelectric power
C.Fossil fuels
D.Solar energy
The atomic energy is derived by splitting the nuclei of a:
A.Radioactive element
B.Radioactive cell
C.Radioactive atom
D.Radioactive substance
An association between a fungus and an alga is known as:
A.Lichen
B.Mycorrhiza
C.Mutualism
D.None of these
The temperature of surface water of oceans is about 25C and it is 5?C at the depth of few hundred meters in the:
A.Temperate region
B.Tropical region
C.Torrid region
D.Equatorial region
Hydroelectric power is the electric power generated by the energy of:
A.Flowing water
B.River water
C.Dam water
D.Falling water
Of the total fresh water, 10% is used in homes whereas 90% is used in:
A.Irrigation
B.Industry
C.Irrigation and industry
D.In making dams
In Pakistan Tarbela, Mangla and Warsak dams are the main:
A.Hydro-electric power plants
B.Nuclear power plants
C.Thermal power plants
D.Power plants
The natural nitrogen cycle is greatly affected by the excessive use of:
A.Sulphate fertilizers
B.Insecticides
C.Phosphate fertilizers
D.Nitrate fertilizers
Carbon monoxide is a poisonous gas, 1% of which in the air can kill a person in:
A.No time
B.In ten minutes
C.In five minutes
D.In fifteen minutes
