Question Category: Natural resources

What are renewable resources?

Resources which can replenish themselves by quick recycling are called renewable resources. For example, forests...

What are the two main causes of over-exploitation of natural

Growing population and industrialisation.

Name the component of air that has maximum solubility in

Carbon dioxide

In which zone of atmosphere is ozone layer present?

Stratosphere

Which gas is added to the atmosphere by the decay

Carbon dioxide

Name the two things essential for existence of life on

(i) Natural resources like air, land and water. (ii) Energy of the Sun.

Name the processes which help to maintain the balance between

Photosynthesis and respiration.

What are the two forms of elemental oxygen found in

Molecular oxygen and ozone.

Which group of organisms is poisoned by elemental oxygen?

Anaerobic bacteria

What is the effect of oxygen on nitrogen fixation?

Nitrogen fixation cannot take place in the presence of oxygen.