1st Class EVS Weather, Air and Water Water and its Resource

      Water as a Natural Resource

     The things, which we get from the nature, are called natural resources.

• The natural resources are not manmade.
• Water is a natural resource.
• Water on the Earth is available in oceans, rivers, lakes, ponds, streams, waterfalls, etc.
• All living things get water from these resources.
• Life is not possible without water.

  Water is a/an ________ resource.

(a) Artificial                                        (b) Big

(c) Small                                             (d) Natural

Answer: (d)

Explanation 

Option (D) is correct because, water is a natural resource. Therefore, rest of the options is incorrect.

   Which one of the following is a true statement?

(a) Lion can live without water                      (b) Human can live without water

(c) Human cannot live without water         (d) Birds can live without water

        Uses of Water

    It is used for the following purposes:

1. Drinking
2. Cooking food
3. Washing and cleaning
4. Bathing
5. Plants growth           
6. Construction of buildings
7. Production of electricity

    Which one of the following does not use water for drinking?

(a)                                           (b)

(c)                                           (d)

Answer: (b)

Explanation

Option (B) is correct because this is a table and table is a non-living thing. It does not need water. All other given options are living things, which use water for drinking. Therefore, rest of the options is incorrect.

  __________ is used for washing clothes.

(a) Water                                             (b) Plastic

(c) Plants                                             (d) Fruits

Answer: (A)

Explanation 

Option (A) is correct because water is used for washing. Therefore, rest of the options is incorrect.

Answer: (c)

Explanation

Option (C) is correct because, this statement is true. In fact, all living things need water to survive and human is a living being. Therefore, rest of the options is incorrect.

    Sources of Water

       Followings are the sources of water:

               Rain                                 Oceans                              Seas                                Rivers                             Lakes  

                 Wells

              Waterfalls

  Which one of the following pictures is a source of water?

(a)                                                    (b)  

(c)                                                     (d) 

Answers: (D)

Explanation

Option (D) is correct because this is the picture of a river, which is a source of water. Therefore, rest of the options is incorrect.

  _________ give us rainwater.

(a) Forest                                             (b) Cloud

(c) Human                                           (d) Animal

Answer: (b)

Explanation

Option (B) is correct because, clouds give us rainwater. Therefore, rest of the options is incorrect.

    Water Conservation

          Water conservation means:

• Saving water.
• Reducing its wastage and loss.
• Improving the efficiency of its use.
• Reducing the usage of it.
• Recycling of waste water for different purposes, such as cleaning, manufacturing, and agricultural irrigation.

If we do not conserve water, we can eventually run out of water. We all need water to survive. Humans, plants and animals need water to live. Without water there will be no life on earth.

  What does the conservation of water mean?

(a) Saving of water                                          (b) Wastage of water

(c) Saving of animals                                       (d) Saving of plants

Answer: (A)

Explanation

Option (A) is correct because it means saving of water.

Therefore, rest of the options is incorrect.

  We cannot conserve water, if we ______ it.             

(a) Use                                                                 (b) Waste

(c) Taste                                                               (d) Drink

Answer: (b)

Explanation

Option (B) is correct because wastage of water is reverse of conserving water. Therefore, rest of the options is incorrect.

• Glaciers on the mountains are the biggest sources of fresh water on the earth.
• At the time of birth, water constitute about 80% of Childs body

• Water is a natural resource, because water or form of water is not man made.
• Living things cannot live without water.
• Without water there will be no life on the earth.
• Water conservation is the saving of water.