Coal and Petroleum Class 8 Science NCERT and Imp. Questions

Coal and Petroleum Class 8 Science NCERT and Imp. Questions

Coal and Petroleum  Class 8 Science NCERT and Imp. Questions
Coal and Petroleum Class 8 Science NCERT and Imp. Questions

Coal and Petroleum Class 8 Science NCERT and Imp. Questions free download

Coal and Petroleum Class 8 Science NCERT and Imp. Questions

Can air, water and soil be exhausted by human activities? You have already studied about water in Class VII. Is water a limitless resource? In the light of the availability of various resources in nature, natural resources can be broadly classified into two kinds: (i) Inexhaustible Natural Resources: These resources are present in unlimited quantity in nature and are not likely to be exhausted by human activities. Examples are: sunlight, air. (ii) Exhaustible Natural Resources: The amount of these resources in nature is limited. They can be exhausted by human activities. Examples of these resources are forests, wildlife, minerals, coal, petroleum, natural gas etc.

Can air, water and soil be exhausted by human activities? You have already studied about water in Class VII. Is water a limitless resource? In the light of the availability of various resources in nature, natural resources can be broadly classified into two kinds: (i) Inexhaustible Natural Resources: These resources are present in unlimited quantity in nature and are not likely to be exhausted by human activities. Examples are: sunlight, air. (ii) Exhaustible Natural Resources: The amount of these resources in nature is limited. They can be exhausted by human activities. Examples of these resources are forests, wildlife, minerals, coal, petroleum, natural gas etc.