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Question (31)

QN0010282

A lake contains 1200 litres of water. After receiving 300 litres from rainfall, how much water does it contain?

(A) 900 litres
(B) 1200 litres
(C) 1300 litres
(D) 1500 litres

Correct Answer: D

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Question (32)

QN0010283

Which of the following would most likely reduce surface water in a pond?

(A) Continuous rainfall
(B) Water withdrawal and evaporation
(C) Addition of stream water
(D) Flooding

Correct Answer: B

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Question (33)

QN0010284

Why are rivers considered important surface water sources?

(A) They transport and supply water over long distances.
(B) They store water underground.
(C) They prevent evaporation completely.
(D) They produce rainfall.

Correct Answer: A

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Question (34)

QN0010285

A pond receives 150 litres of rainwater and loses 50 litres through evaporation. What is the net gain in surface water?

(A) 50 litres
(B) 75 litres
(C) 100 litres
(D) 150 litres

Correct Answer: C

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Question (35)

QN0010286

Which observation best supports the idea that a lake is a surface water source?

(A) It is visible on the land surface.
(B) It is stored deep underground.
(C) It is found inside rocks.
(D) It exists only below soil layers.

Correct Answer: A

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Question (36)

QN0010287

A village has four ponds containing 100 litres, 150 litres, 200 litres and 250 litres of water. What is the total amount of surface water in these ponds?

(A) 500 litres
(B) 600 litres
(C) 700 litres
(D) 800 litres

Correct Answer: C

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Question (37)

QN0010288

Which action best reflects the idea of Bridging Science and Society in the surface water section?

(A) Protecting local ponds and lakes from pollution
(B) Studying cloud shapes only
(C) Measuring rock hardness
(D) Digging random pits

Correct Answer: A

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Question (38)

QN0010289

A lake loses 20% of its 1000 litres of water during a dry spell. How much water remains?

(A) 700 litres
(B) 750 litres
(C) 800 litres
(D) 900 litres

Correct Answer: C

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Question (39)

QN0010290

Which statement is most appropriate regarding surface water conservation?

(A) Surface water sources should be protected from pollution.
(B) Lakes should be filled with concrete.
(C) Rivers should be blocked completely.
(D) Ponds should be drained permanently.

Correct Answer: A

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Question (40)

QN0010291

A town has two lakes containing 600 litres and 900 litres of water. Together they contain how much surface water?

(A) 1200 litres
(B) 1300 litres
(C) 1400 litres
(D) 1500 litres

Correct Answer: D

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Question (31)

A lake contains 1200 litres of water. After receiving 300 litres from rainfall, how much water does it contain?

Explanation:

Link:

Question (32)

Which of the following would most likely reduce surface water in a pond?

Explanation:

Link:

Question (33)

Why are rivers considered important surface water sources?

Explanation:

Link:

Question (34)

A pond receives 150 litres of rainwater and loses 50 litres through evaporation. What is the net gain in surface water?

Explanation:

Link:

Question (35)

Which observation best supports the idea that a lake is a surface water source?

Explanation:

Link:

Question (36)

A village has four ponds containing 100 litres, 150 litres, 200 litres and 250 litres of water. What is the total amount of surface water in these ponds?

Explanation:

Link:

Question (37)

Which action best reflects the idea of Bridging Science and Society in the surface water section?

Explanation:

Link:

Question (38)

A lake loses 20% of its 1000 litres of water during a dry spell. How much water remains?

Explanation:

Link:

Question (39)

Which statement is most appropriate regarding surface water conservation?

Explanation:

Link:

Question (40)

A town has two lakes containing 600 litres and 900 litres of water. Together they contain how much surface water?

Explanation:

Link:

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