Some natural resources are given in a box. Classify them into the exhaustible and inexhaustible natural resources.

air, coal, natural gas, sunlight, petroleum, minerals, forests, oxygen.

Exhaustible resources are coal, natural gas, petroleum, minerals, forests. They are present in limited quantity and are exhausted by human activities.

Inexhaustible resources are air, sunlight, oxygen. They are present in unlimited quantity and cannot be exhausted by human activities.