3rd Class Science Natural resources Non Renewable Resources

     Non Renewable Resources

Nonrenewable resources cannot be regenerated. Oil, coal, natural gas, etc. are some examples of nonrenewable resources.

          Coal                                           Liquefied Petroleum Gas (LPG)  

         Some Important Natural Resources

Nature has given us many important resources for our use. Some of them are given below.

         Sun

The sun provides light and warmth to the earth. Plants make their own food only in the presence of sunlight. The solar energy from the sun can be used as renewable source of energy for lightening of streets, cooking food and for many other purposes.

   Solar energy

         Water

Water is essential for the existence of animals and plants. Energy of flowing water can be used for generating hydroelectric power.

   Hydroelectric power  

         Wind

Wind is an important natural resource. It is utilized as a renewable source of energy.

Many wind mills have been set up all over the world to utilize wind energy.

Wind energy used in wind mill  

       Land

Land is the most important natural resource. All plants and vegetables grow on land.

           Land  

           Minerals

Mineral is a natural resource that is hidden under the earth. Gold, silver, salt, bauxite and coal are few examples of minerals.

 Gold in mineral form                                         Silver in mineral form  

         Forest

Forests are renewable natural resources. They attract rain and prevent floods.

They conserve soil by replenishing the minerals and give oxygen to the atmosphere.

                         Forest    

      Natural Resources are classified into________ group.

(a) 3

(b) 2

(c) 5

(d) 4

(e) None of these

Answer: (b)

Explanation

Natural Resources are classified into two groups, i.e., renewable and non-renewable resources.

       In which of the following categories gold comes?

(a) Rock  

(b) Soil

(c) Mineral

(d) All of these

(e) None of these

Answer: (c)

Explanation

Gold is a mineral because it is found hidden under the earth.

The things that we get from nature is called natural resources.

Natural resources may be classified into renewable and non-renewable resources.

On the basis of their origin, renewable resources may be classified into biotic and abiotic.

Nonrenewable resources cannot be regenerated..