Write True/False against the following statements.

(a) Oxygen in air is an exhaustible natural resource.

(b) Resources which are present in unlimited quantity in nature are called exhaustible natural resources.

(c) Wildlife is an exhaustible natural resource.

(d) Under high temperature and pressure, dead plants get slowly converted to coal.

(e) CNG is less polluting fuel than petrol and diesel.

(a) False,

Oxygen in air is an inexhaustible natural resource as it is present in unlimited quantity in nature and cannot be exhausted by human activities.

(b) False

Inexhaustible natural resources are present in unlimited quantity in nature and cannot be exhausted by human activities.

(c) True

They are limited in number and can be exhausted as a result of human activities so it is a exhaustible natural resource.

(d) True

The dead remains of plants buried under earth’s surface under high pressure and temperature and in absence of air slowly convert into coal.

(e) True.

CNG is compressed natural gas formed under high pressure and when it burns it does not produce smoke. After burning it does not leave any solid residues behind so it is a clean fuel and is less polluting than petrol or diesel.