Polar

(adj) /ˈpəʊlə(r)/

Nghĩa

Cực

UK ˈpəʊlə(r)

US ˈpəʊlər

Major snow-prone areas include the polar regions, the northernmost half of the Northern Hemisphere and mountainous regions worldwide with sufficient moisture and cold temperatures.
Mars is a terrestrial planet with a thin atmosphere, having surface features like those of the impact craters of the Moon, and valleys, deserts, and polar ice caps of Earth.
In summer, many whales feed in cold polar waters, where food is rich and plentiful.
When winter arrives, whales [cannot] survive in freezing polar waters, so they must move.

Why Whales Travel So FarEvery year, some whales swim thousands of miles across the ocean without stopping to rest. These incredible journeys are called migrations, and they are among the longest animal movements on Earth. Wh...Đọc bài

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