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
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 too cold.
C. Because whales couldn’t breathe without sufficient oxygen.
D. Because the water was too cold for them as they were warm-blooded.