Question

[111]. Passage: The Gangetic river dolphin, India's national aquatic animal, lives in murky river water and hunts mainly by sound. Dams, pollution, and fishing nets threaten it, and its decline signals wider river ill-health. Protecting the dolphin therefore means protecting river flow, water quality, and fishing practices together, not only counting animals. Its decline signals:

1.
Better water quality
2.
More dams helping fish
3.
Only fewer fish
4.
Wider river ill-health
Answer (Detailed Solution Below)

Option 4 : Wider river ill-health

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Detailed Solution

सही उत्तर Wider river ill-health है।

Key Points

Decline signals river ill-health.

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Question:

[111]. Passage: The Gangetic river dolphin, India's national aquatic animal, lives in murky river water and hunts mainly by sound. Dams, pollution, and fishing nets threaten it, and its decline signals wider river ill-health. Protecting the dolphin therefore means protecting river flow, water quality, and fishing practices together, not only counting animals. Its decline signals:

1.
Better water quality
2.
More dams helping fish
3.
Only fewer fish
4.
Wider river ill-health

Correct Answer: Wider river ill-health

Decline signals river ill-health.

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