Question

[122]. Read the following passage carefully and answer the question.

Passage: At dawn, a forest fills with birdsong, and it is tempting to hear it as mere music. In fact, birds sing for urgent reasons: to defend a territory, to attract a mate, to warn of a predator, and to keep contact with a flock. A young bird learns its species' song by listening, practising and correcting mistakes, much as a child learns language; a bird raised in silence sings a broken version of the song. Some birds even vary their songs by season and by rival, showing that song is not a fixed recording but a flexible tool. Listening carefully to birdsong is therefore listening to communication under pressure: identity, warning and courtship compressed into a few seconds of sound, repeated until the message is received.

What is the main idea of the passage?

1.
A public library is a shared free space that preserves memory and builds critical judgement in readers.
2.
Careful observation of an unexpected result led to penicillin, later purified into a life-saving medicine.
3.
Coral reefs are fragile, biodiverse ecosystems that shelter marine life and protect coasts from waves.
4.
Birdsong is flexible communication for territory, mating, warning and flock contact, learned by practice.
Answer (Detailed Solution Below)

Option 4 : Birdsong is flexible communication for territory, mating, warning and flock contact, learned by practice.

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Detailed Solution

सही उत्तर Birdsong is flexible communication for territory, mating, warning and flock contact, learned by practice. है।

Key Points

The passage centres on: Birdsong is flexible communication for territory, mating, warning and flock contact, learned by practice.

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Question:

[122]. Read the following passage carefully and answer the question.

Passage: At dawn, a forest fills with birdsong, and it is tempting to hear it as mere music. In fact, birds sing for urgent reasons: to defend a territory, to attract a mate, to warn of a predator, and to keep contact with a flock. A young bird learns its species' song by listening, practising and correcting mistakes, much as a child learns language; a bird raised in silence sings a broken version of the song. Some birds even vary their songs by season and by rival, showing that song is not a fixed recording but a flexible tool. Listening carefully to birdsong is therefore listening to communication under pressure: identity, warning and courtship compressed into a few seconds of sound, repeated until the message is received.

What is the main idea of the passage?

1.
A public library is a shared free space that preserves memory and builds critical judgement in readers.
2.
Careful observation of an unexpected result led to penicillin, later purified into a life-saving medicine.
3.
Coral reefs are fragile, biodiverse ecosystems that shelter marine life and protect coasts from waves.
4.
Birdsong is flexible communication for territory, mating, warning and flock contact, learned by practice.

Correct Answer: Birdsong is flexible communication for territory, mating, warning and flock contact, learned by practice.

The passage centres on: Birdsong is flexible communication for territory, mating, warning and flock contact, learned by practice.

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