Class 7 Geography Chapter 5 Practice Question Answers - Water

Q1. Ponds are source of:
(a) Fresh water
(b) Saline water
(c) Hard water
(d) None of these
Ans: (a)

Q2. Ground water constitutes the portion of the world’s distribution:
(a) 1%
(b) 1.5%
(c) 0.68%
(d) 0.50%
Ans: (c)

Q3. The rhythmic rise and fall of ocean water twice in a day is called:
(a) Wave
(b) Tide
(c) Salinity
(d) None of these
Ans: (b) 

Q4. Spring and neap are kinds of:
(a) Wave
(b) Earthquake
(c) Tides
(d) None of these
Ans: (c)

Q5. What percentage of ice caps are found in the world?
(a) 2%
(b) 2.5%
(c) 3%
(d) 1.5%
Ans: (a)

Q6. The largest tsunami ever measured was:
(a) 120m high
(b) 150m high
(c) 250m high
(d) 140m high
Ans: (b)

Q7. The waves travel at a speed of more than ________ km per hour.
(a) 700
(b) 600
(c) 800
(d) 550
Ans: (a)

Q8. The gravitational pull exerted by the sun and the moon and the earth’s surface causes the:
(a) Tides
(b) Waves
(c) Earthquake
(d) None of these
Ans: (a)

Q9. ________ tides help in navigation.
(a) Low
(b) High
(c) Very low
(d) Moderate
Ans: (b)

Q10. Oceans contain large amount of dissolved:
(a) Magnesium
(b) Iron
(c) Salts
(d) None of these
Ans: (c)

Q11. What is water cycle?
(a) Process by which water continually flows
(b) Process by which water continually changes its form
(c) Process by which water never changes
(d) None of these
Ans: (b)
The water cycle is the process by which water continually changes its form and circulates between water bodies, atmosphere and lan(d)

Q12. Where is the Warm Ocean currents originate near?
(a) Tropic of Cancer
(b) Equator
(c) Poles
(d) None of these
Ans: (c)
Generally, the warm ocean currents originate near the equator and move towards the poles. The cold currents carry water from polar or higher latitudes to tropical or lower latitudes.

Q13. What is called the rhythmic rise and fall of ocean water twice in a day?
(a) Tides
(b) Ocean Currents
(c) Waves
(d) All of these
Ans: (a)
The rhythmic rise and fall of ocean water twice in a day is called a tide. It is high tide when water covers much of the shore by rising to its highest level.

Q14. Where is the cold current originate?
(a) Equator
(b) Poles
(c) Tropic of Cancer
(d) Tropic of Capricorn
Ans: (b)
Generally, the warm ocean currents originate near the equator and move towards the poles. The cold currents carry water from polar or higher latitudes to tropical or lower latitudes.

Q15. Which water is salty in taste?
(a) River’s water
(b) Pond water
(c) Sea water
(d) Rain water
Ans: (c)
The ocean bodies and the seas contain salty water. The water of the oceans is salty or saline as it contains large amount of dissolved salts.

Q16. What do you mean by tides?
(a) Rhythmic rise of temperature
(b) Rhythmic rise and fall of ocean water
(c) Rhythmic rise of rainfall
(d) None of these
Ans: (b)
Tides are rhythmic rise and fall of ocean water that occurs twice in a day. The strong gravitational pull exerted by the sun and the moon on the earth’s surface causes the tides.

Q17. Why do swimmers float in Dead Sea?
(a) Salt makes it dense
(b) It is lighter in weight
(c) Both a and b
(d) None of these
Ans: (a) Salt makes it dense
Swimmers float in dead sea because the increased salt content makes it dense.

Q18. What do you mean by terrarium?
(a) Artificial plant
(b) Artificial climate
(c) Artificial enclosure
(d) None of these
Ans: (c)
Terrarium is an artificial enclosure for keeping small house plants.