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Question (1)

QN0010407

Which of the following is mentioned as a cause of river pollution?

(A) Snowfall in mountains
(B) Waste, plastic and dirty water entering rivers
(C) River water flowing to the sea
(D) Growth of forests near rivers

Correct Answer: B

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Question (2)

QN0010408

Why can polluted river water make people sick?

(A) It contains harmful substances
(B) It becomes colder
(C) It flows too slowly
(D) It changes colour naturally

Correct Answer: A

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Question (3)

QN0010409

According to the lesson, one important way to reduce pollution is to ________.

(A) Create less waste
(B) Build more roads
(C) Cut down trees
(D) Use more plastic

Correct Answer: A

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Question (4)

QN0010410

What type of products are encouraged to reduce waste?

(A) Metal products
(B) Eco-friendly products
(C) Imported products
(D) Disposable products

Correct Answer: B

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Question (5)

QN0010411

Which living beings are specifically mentioned as suffering due to river pollution?

(A) Fish, turtles and birds
(B) Lions, tigers and elephants
(C) Cows, goats and sheep
(D) Dogs, cats and rabbits

Correct Answer: A

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Question (6)

QN0010412

Plastic wrappers and bags thrown carelessly are most likely to end up in ________.

(A) Clouds
(B) Rivers and water bodies
(C) Mountains only
(D) Deserts

Correct Answer: B

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Question (7)

QN0010413

What observation is expected when sugar is stirred in water?

(A) Sugar floats on top
(B) Sugar dissolves in water
(C) Sugar forms a separate layer
(D) Sugar hardens immediately

Correct Answer: B

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Question (8)

QN0010414

What observation is expected when cooking oil is stirred in water?

(A) Oil dissolves completely
(B) Oil disappears
(C) Oil does not dissolve in water
(D) Oil turns into sugar

Correct Answer: C

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Question (9)

QN0010415

In the activity, which glass appears clearer after stirring?

(A) Glass containing sugar and water
(B) Glass containing oil and water
(C) Both are equally cloudy
(D) Neither glass

Correct Answer: A

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Question (10)

QN0010416

Which exact statement is demonstrated by the sugar–oil activity?

(A) All substances dissolve in water
(B) Some substances dissolve in water and some do not
(C) Water dissolves only liquids
(D) Water dissolves only solids

Correct Answer: B

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Question (1)

Which of the following is mentioned as a cause of river pollution?

Explanation:

Link:

Question (2)

Why can polluted river water make people sick?

Explanation:

Link:

Question (3)

According to the lesson, one important way to reduce pollution is to ________.

Explanation:

Link:

Question (4)

What type of products are encouraged to reduce waste?

Explanation:

Link:

Question (5)

Which living beings are specifically mentioned as suffering due to river pollution?

Explanation:

Link:

Question (6)

Plastic wrappers and bags thrown carelessly are most likely to end up in ________.

Explanation:

Link:

Question (7)

What observation is expected when sugar is stirred in water?

Explanation:

Link:

Question (8)

What observation is expected when cooking oil is stirred in water?

Explanation:

Link:

Question (9)

In the activity, which glass appears clearer after stirring?

Explanation:

Link:

Question (10)

Which exact statement is demonstrated by the sugar–oil activity?

Explanation:

Link:

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