MCQ on Water

CBSE 7th Class MCQ CBSE Multiple Choice Questions (MCQ)

MCQ on Water

1- The process by which water continually changes its form and circulates between oceans, atmosphere and land is known as …………….

(A) Water cycle

(B) Evaporation

(C) Precipitation

(D) None of the above

 

2- Which of the following are major source of fresh water?

(A) Rivers

(B) Ponds

(C) Glaciers

(D) All of the above

 

3- Which of these sources of water contain salty water?

(A) Ocean bodies

(B) Seas

(C) Both A and B

(D) None of the above

 

4- Name the most common salt found in ocean and sea?

(A) Sodium carbonate

(B) Sodium bicarbonate

(C) Sodium chloride

(D) Sodium hydroxide

 

5- ………………….is the amount of salt in grams present in 1000 grams of water.

(A) Lithium

(B) Sodium

(C) Potassium

(D) Salinity

 

6- What percentage of water is found in oceans?

(A) 99.3%

(B) 97.3%

(C) 96.3%

(D) 95.3%

 

7- …………………in Israel has salinity of 45 parts per thousand.

(A) Caspian Sea

(B) Dead Sea

(C) Red Sea

(D) None of the above

 

8- ……………….part of the earth surface is covered with water.

(A) 3/2

(B) 3/3

(C) 3/4

(D) None of the above

 

9- How percentage of fresh water is found in Ice-caps?

(A) 02.22%

(B) 02.20%

(C) 02.02%

(D) 02.0%

 

10- …………..is necessary for the survival of life.

(A) Water

(B) Food

(C) Gases

(D) All of above

 

ANSWERS:

1-(A), 2-(D), 3-(B), 4-(C), 5-(D), 6-(B), 7-(B), 8-(C), 9-(D), 10-(D)