Study the given statements.
I. Obtaining wood to make paper.
II. Poisoning of the soil by weed killers.
III. Making land available for growing crops.
IV. Digging for fuels and minerals from ground.
Which of the above activities are cause of deforestation?
I and II only
III and IV only
I, II and III only
I, III and IV only
Which of the following gases is not a green house gas?
Sulphur dioxide
Carbon dioxide
Methane
Oxygen
Acid rain is caused due to increase in concentration of ................ and .................. in atmosphere.
The information in which row completes the given statement?
Sulphur dioxide, Nitrogen dioxide
Carbon monoxide, Carbon dioxide
Carbon monoxide, Sulphur dioxide
Ozone, Dust
Electric wires are usually made of
Aluminium
Magnesium
Copper
Silver
