EWT | Academic Question

Question (1)

QN0068

Which statement correctly matches the definition of an ecosystem?

(A) A group of planets revolving around the Sun
(B) Interaction between living organisms and their environment
(C) Only plants growing in a forest
(D) A mixture of air, water, and soil only

Correct Answer: B

Explanation:

An ecosystem includes living organisms interacting with air, water, sunlight, soil, and other surroundings.

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Question (2)

QN0069

A pond suddenly dries up due to extreme heat. Which effect is most likely to occur first?

(A) Fish population may decrease
(B) Mountains may disappear
(C) The Moon’s phases will change
(D) Soil will stop containing minerals

Correct Answer: A

Explanation:

Fish and other aquatic organisms directly depend on water for survival. Drying of the pond affects them immediately.

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Question (3)

QN0070

Which of the following is a natural resource that directly protects humans from harmful ultraviolet rays?

(A) Soil
(B) Atmosphere
(C) Rocks
(D) Sand

Correct Answer: B

Explanation:

The atmosphere acts as a protective layer and shields Earth from harmful ultraviolet rays from the Sun.

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Question (4)

QN0071

A scientist says, “Small changes in Earth’s temperature can disturb climate patterns.” Which human activity is most closely related to this problem?

(A) Planting trees
(B) Conserving water
(C) Excessive pollution and deforestation
(D) Observing Moon phases

Correct Answer: C

Explanation:

Pollution and cutting down forests increase global warming and disturb climate patterns.

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Question (5)

QN0072

Which option contains only natural resources mentioned or implied in the chapter?

(A) Plastic, steel, petrol
(B) Air, water, sunlight
(C) Mobile phone, electricity, fuel
(D) Buildings, roads, cement

Correct Answer: B

Explanation:

Air, water, and sunlight are naturally available resources essential for life.

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Question (6)

QN0073

If Earth moved much closer to the Sun, what would most likely happen first?

(A) Water may evaporate rapidly
(B) Moon phases would stop
(C) Air would become solid
(D) Plants would stop requiring sunlight

Correct Answer: A

Explanation:

Higher temperatures due to reduced distance from the Sun would cause rapid evaporation of water.

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Question (7)

QN0074

Which of the following best shows dependence of living organisms on natural resources?

(A) Birds building nests in trees
(B) A robot charging its battery
(C) A calculator solving sums
(D) A magnet attracting iron

Correct Answer: A

Explanation:

Birds depend on trees for shelter and nesting, showing dependence on natural resources.

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Question (8)

QN0077

Which of the following habits is MOST directly related to maintaining both physical and mental health?

(A) Sleeping late daily
(B) Skipping breakfast regularly
(C) Exercising regularly and relaxing daily
(D) Spending long hours on mobile phones

Correct Answer: C

Explanation:

Exercising regularly and taking time to relax help maintain both physical and mental health.

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Question (9)

QN0078

According to the chapter, health depends mainly on

(A) medicines only
(B) lifestyle and surroundings
(C) wealth and social status only
(D) age and height only

Correct Answer: B

Explanation:

The chapter explains that our health depends on our lifestyle and environment.

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Question (10)

QN0079

A student sleeps at 1:00 a.m., skips breakfast, and spends 6–7 hours daily on screens. Which health problem is MOST likely to develop first?

(A) Better concentration and fitness
(B) Improved digestion
(C) Tiredness and poor mental focus
(D) Increased immunity immediately

Correct Answer: C

Explanation:

Lack of sleep, poor eating habits, and excessive screen time commonly cause tiredness and poor concentration.

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Question (1)

Which statement correctly matches the definition of an ecosystem?

Explanation:

Link:

Question (2)

A pond suddenly dries up due to extreme heat. Which effect is most likely to occur first?

Explanation:

Link:

Question (3)

Which of the following is a natural resource that directly protects humans from harmful ultraviolet rays?

Explanation:

Link:

Question (4)

A scientist says, “Small changes in Earth’s temperature can disturb climate patterns.” Which human activity is most closely related to this problem?

Explanation:

Link:

Question (5)

Which option contains only natural resources mentioned or implied in the chapter?

Explanation:

Link:

Question (6)

If Earth moved much closer to the Sun, what would most likely happen first?

Explanation:

Link:

Question (7)

Which of the following best shows dependence of living organisms on natural resources?

Explanation:

Link:

Question (8)

Which of the following habits is MOST directly related to maintaining both physical and mental health?

Explanation:

Link:

Question (9)

According to the chapter, health depends mainly on

Explanation:

Link:

Question (10)

A student sleeps at 1:00 a.m., skips breakfast, and spends 6–7 hours daily on screens. Which health problem is MOST likely to develop first?

Explanation:

Link:

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