Question
[106]. Read the following passage carefully:
Passage: "The river dolphin of the Ganga is almost blind and finds its way by sound. It sends out clicks and listens for echoes from fish, riverbed and obstacles — a skill called echolocation. Because it lives in murky water, sight would be of little use, but sound travels well underwater. Noise from boats, dams that break its habitat into parts, and fishing nets now threaten it. Protecting the dolphin means protecting quiet, connected stretches of river, not only the animal itself. Its survival is a measure of the river's health." What is the main idea of the passage?
Option 3 : The Ganga river dolphin navigates by echolocation, and its survival measures river health, threatened by noise, dams and nets.
Detailed Solution
सही उत्तर The Ganga river dolphin navigates by echolocation, and its survival measures river health, threatened by noise, dams and nets. है।
The dolphin uses sound in murky water, and threats to it reflect river health.
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prepsnap.in • Mock TestQuestion:
[106]. Read the following passage carefully:
Passage: "The river dolphin of the Ganga is almost blind and finds its way by sound. It sends out clicks and listens for echoes from fish, riverbed and obstacles — a skill called echolocation. Because it lives in murky water, sight would be of little use, but sound travels well underwater. Noise from boats, dams that break its habitat into parts, and fishing nets now threaten it. Protecting the dolphin means protecting quiet, connected stretches of river, not only the animal itself. Its survival is a measure of the river's health." What is the main idea of the passage?
Correct Answer: The Ganga river dolphin navigates by echolocation, and its survival measures river health, threatened by noise, dams and nets.
The dolphin uses sound in murky water, and threats to it reflect river health.