Question
[123]. Read the following passage carefully:
Passage: "A mountain lake looks still, but its water turns over with the seasons. In winter, cold water sinks; in summer, warm water stays on top and cold water rests below. Fish move between layers to find food and oxygen. When the lake turns over in spring and autumn, nutrients mix and the whole lake renews. Stillness on the surface hides movement below." Why do fish move between layers?
Option 4 : To find food and oxygen
Detailed Solution
सही उत्तर To find food and oxygen है।
Food and oxygen drive movement.
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prepsnap.in • Mock TestQuestion:
[123]. Read the following passage carefully:
Passage: "A mountain lake looks still, but its water turns over with the seasons. In winter, cold water sinks; in summer, warm water stays on top and cold water rests below. Fish move between layers to find food and oxygen. When the lake turns over in spring and autumn, nutrients mix and the whole lake renews. Stillness on the surface hides movement below." Why do fish move between layers?
Correct Answer: To find food and oxygen
Food and oxygen drive movement.