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Question (21)

QN0011813

Which statement best explains why rosy starlings are useful to farmers?

(A) They build nests on crops
(B) They eat harmful crop pests
(C) They increase weeds
(D) They reduce sunlight

Correct Answer: B

Explanation:

Rosy starlings help farmers by feeding on crop pests.

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Question (22)

QN0011814

If 48 birds are equally distributed among 6 trees, how many birds sit on each tree?

(A) 6
(B) 7
(C) 8
(D) 9

Correct Answer: C

Explanation:

48 ÷ 6 = 8.

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Question (23)

QN0011815

A flock has 720 birds. If one-fourth fly away, how many birds leave?

(A) 120
(B) 150
(C) 180
(D) 240

Correct Answer: C

Explanation:

720 ÷ 4 = 180.

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Question (24)

QN0011816

Which idea from the story best supports the statement "nature has no boundaries"?

(A) Birds migrate across countries without following borders
(B) Birds stay in one village forever
(C) Birds travel only in cages
(D) Birds cannot cross mountains

Correct Answer: A

Explanation:

Migration shows that nature is not limited by human-made borders.

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Question (25)

QN0011817

If 1,200 grasshoppers are present and rosy starlings eat 75% of them, how many are eaten?

(A) 600
(B) 750
(C) 900
(D) 1,000

Correct Answer: C

Explanation:

75% of 1,200 = 900.

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Question (26)

QN0011818

A flock consists of 180 adult birds and 120 young birds. What is the total number of birds?

(A) 260
(B) 280
(C) 300
(D) 320

Correct Answer: C

Explanation:

180 + 120 = 300.

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Question (27)

QN0011819

Which activity suggested in the chapter helps students understand the migration route visually?

(A) Making a clay model
(B) Tracing the journey on a globe using a string
(C) Drawing a school building
(D) Measuring rainfall

Correct Answer: B

Explanation:

The activity uses a string on a globe to trace the migration path.

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Question (28)

QN0011820

If 50 birds each consume 12 insects, how many insects are eaten altogether?

(A) 500
(B) 550
(C) 600
(D) 650

Correct Answer: C

Explanation:

50 × 12 = 600.

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Question (29)

QN0011821

A bird starts a 4,800 km migration. After travelling 3,200 km, how much distance is left?

(A) 1,200 km
(B) 1,400 km
(C) 1,600 km
(D) 1,800 km

Correct Answer: C

Explanation:

4,800 − 3,200 = 1,600 km.

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Question (30)

QN0011822

The story of rosy starlings mainly teaches that:

(A) Birds depend only on humans
(B) Nature and living beings are interconnected globally
(C) Migration is harmful to ecosystems
(D) Birds cannot help agriculture

Correct Answer: B

Explanation:

The story highlights global interconnectedness in nature.

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Question (21)

Which statement best explains why rosy starlings are useful to farmers?

Explanation:

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Question (22)

If 48 birds are equally distributed among 6 trees, how many birds sit on each tree?

Explanation:

Link:

Question (23)

A flock has 720 birds. If one-fourth fly away, how many birds leave?

Explanation:

Link:

Question (24)

Which idea from the story best supports the statement "nature has no boundaries"?

Explanation:

Link:

Question (25)

If 1,200 grasshoppers are present and rosy starlings eat 75% of them, how many are eaten?

Explanation:

Link:

Question (26)

A flock consists of 180 adult birds and 120 young birds. What is the total number of birds?

Explanation:

Link:

Question (27)

Which activity suggested in the chapter helps students understand the migration route visually?

Explanation:

Link:

Question (28)

If 50 birds each consume 12 insects, how many insects are eaten altogether?

Explanation:

Link:

Question (29)

A bird starts a 4,800 km migration. After travelling 3,200 km, how much distance is left?

Explanation:

Link:

Question (30)

The story of rosy starlings mainly teaches that:

Explanation:

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