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Question (31)

QN005863

A factory reduces coal consumption from 900 tonnes to 720 tonnes. How many tonnes are saved?

(A) 150 tonnes
(B) 160 tonnes
(C) 170 tonnes
(D) 180 tonnes

Correct Answer: D

Explanation:

900 − 720 = 180 tonnes.

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Question (32)

QN005864

Why are renewable resources considered environmentally friendly?

(A) They can be replenished naturally and reduce dependence on finite resources
(B) They are always underground
(C) They never require maintenance
(D) They increase pollution

Correct Answer: A

Explanation:

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Question (33)

QN005865

A hydroelectric station produces 15,000 units of electricity in 5 days. What is the average daily production?

(A) 2500 units
(B) 2800 units
(C) 3000 units
(D) 3200 units

Correct Answer: C

Explanation:

15,000 ÷ 5 = 3000 units.

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Question (34)

QN005866

Which of the following is obtained from a non-renewable resource?

(A) Petrol
(B) Wind energy
(C) Solar energy
(D) Hydropower

Correct Answer: A

Explanation:

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Question (35)

QN005867

A family reduces electricity consumption by 25 units per month. How many units are saved in 8 months?

(A) 150 units
(B) 175 units
(C) 200 units
(D) 225 units

Correct Answer: C

Explanation:

25 × 8 = 200 units.

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Question (36)

QN005868

Which action best supports sustainable use of natural resources?

(A) Recycling and efficient use of materials
(B) Excessive extraction
(C) Resource wastage
(D) Uncontrolled mining

Correct Answer: A

Explanation:

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Question (37)

QN005869

A petroleum reserve initially contains 120,000 barrels. If 35,000 barrels are extracted, how many barrels remain?

(A) 80,000
(B) 82,000
(C) 85,000
(D) 88,000

Correct Answer: C

Explanation:

120,000 − 35,000 = 85,000 barrels.

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Question (38)

QN005870

Which observation indicates that a resource is non-renewable?

(A) It forms over millions of years and is depleted when used
(B) It is replenished every season
(C) It is produced by rainfall
(D) It is available endlessly

Correct Answer: A

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Question (39)

QN005871

A solar-powered pump irrigates 18 fields in one day. How many fields can it irrigate in 7 days at the same rate?

(A) 108
(B) 116
(C) 126
(D) 136

Correct Answer: C

Explanation:

18 × 7 = 126 fields.

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Question (40)

QN005872

Why is it important to increase the use of renewable resources?

(A) To reduce pressure on limited non-renewable resources and support sustainable development
(B) To increase fossil fuel consumption
(C) To eliminate all natural resources
(D) To reduce energy availability

Correct Answer: A

Explanation:

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Question (31)

A factory reduces coal consumption from 900 tonnes to 720 tonnes. How many tonnes are saved?

Explanation:

Link:

Question (32)

Why are renewable resources considered environmentally friendly?

Explanation:

Link:

Question (33)

A hydroelectric station produces 15,000 units of electricity in 5 days. What is the average daily production?

Explanation:

Link:

Question (34)

Which of the following is obtained from a non-renewable resource?

Explanation:

Link:

Question (35)

A family reduces electricity consumption by 25 units per month. How many units are saved in 8 months?

Explanation:

Link:

Question (36)

Which action best supports sustainable use of natural resources?

Explanation:

Link:

Question (37)

A petroleum reserve initially contains 120,000 barrels. If 35,000 barrels are extracted, how many barrels remain?

Explanation:

Link:

Question (38)

Which observation indicates that a resource is non-renewable?

Explanation:

Link:

Question (39)

A solar-powered pump irrigates 18 fields in one day. How many fields can it irrigate in 7 days at the same rate?

Explanation:

Link:

Question (40)

Why is it important to increase the use of renewable resources?

Explanation:

Link:

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