Английский язык: рекомендуемые темы для сочинений с элементами рассуждений и аргументации. Гришин В.А. - 12 стр.

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"Arctic deer live on islands in Canada's arctic region. They search for food by moving

over ice from island to island during the course of a year. Their habitat is limited to areas

warm enough to sustain the plants on which they feed, and cold enough, at least some of

the year, for the ice to cover the sea separating the islands, allowing the deer to travel

over it. Unfortunately, according to reports from local hunters, the deer populations are

declining. Since these reports coincide with recent global warming trends that have

caused the sea ice to melt, we can conclude that the decline in arctic deer populations is

the result of deer being unable to follow their age-old migration patterns across the

frozen sea."

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26) Although black bears are common in the eastern Canadian province of Labrador,

grizzly bears—often similar in color, but much larger—were believed to exist only in

the western provinces. Despite a nineteenth-century explorer's account of having startled

and narrowly escaped from a grizzly bear deep in the woods in Labrador, modern

scientists find no physical evidence that grizzly bears have ever lived in Labrador. But

recent research into the language and legends of the Innu, a people who have lived in

Labrador for thousands of years, reveals that their language has words for two different

kinds of bears, and their ancient legends attribute different characteristics to the two

kinds of bears. Therefore, there probably were grizzly bears in Labrador, and the

explorer's account probably accurately identified the bear.

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27) Scientists studying historical weather patterns have discovered that in the mid-sixth

century, Earth suddenly became significantly cooler. Although few historical records

survive from that time, some accounts found both in Asia and Europe mention a

dimming of the sun and extremely cold temperatures. Either a huge volcanic eruption or

a large meteorite colliding with Earth could have created a large dust cloud throughout

Earth's atmosphere that would have been capable of blocking enough sunlight to lower

global temperatures significantly. A large meteorite collision, however, would probably