Which of the following are the commonly known precious metals?
Copper and zinc
Mercury and iron
Gold and silver
Iron and aluminium
National parks and sanctuaries are created by the Government to protect and preserve:
Flowers
Flora and fauna
Human beings
Birds
Holes dug in the earth to take out minerals are called:
Wells
Mines
Bore-wells
Tanks
If the trees are cut down, the amount of rainfall:
Decreases
Increases
Doesn't change
First decreases and later increases
Liquefied petroleum gas (LPG) is used for:
a) Running vehicles
b) Cooking
c) Making electricity
a only
a and b only
b only
c only
Which of the following is an alternative source of energy?
Solar energy
Coal
Diesel
Hydro electricity
Which is the national animal of India?
Elephant
Lion
Tiger
Cheetah
World environment day is on:
September 5
October 2
December 1
June 5
Biogas is produced from:
Petroleum
Minerals
Water
Cow dung
The resources if managed wisely, maintain themselves or get replaced are called:
Degradable resources
Natural resources
Renewable resources
Non-renewable resources
