According to the passage, why was the frozen ice on the sea surface a danger to whales? A. Because they couldn’t swim in icy cold water. B. Because they couldn’t eat when the weather was to

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According to the passage, why was the frozen ice on the sea surface a danger to whales?

Because they couldn’t swim in icy cold water.

Because they couldn’t eat when the weather was too cold.

Because whales couldn’t breathe without sufficient oxygen.

Because the water was too cold for them as they were warm-blooded.

Giải thích

Đáp án C

Because whales couldn’t breathe without sufficient oxygen.

“Whales are mammals that require oxygen from the air, so the frozen ice was a great danger to them.” Dịch: cá voi là động vật có vú, chúng cần oxy từ không khí để sống, do đó băng là mối đe dọa đối với chúng.