单项选择题

According to the article, what is one of the results of rising temperatures at Hudson Bay

A．Polar bears have become extinct.
B．Polar bears have less of an appetite.
C．A reduced amount of time for polar bears to feed.
D．The changes are startling and unexpected.
<上一题 目录 下一题>
热门 试题

单项选择题
Many scientists hold that global warming can be controlled by ______.
A．reducing the polar bear population
B．paying more attention to the earth's rising temperatures
C．reducing carbon dioxide emissions
D．refreezing the polar ice caps
单项选择题
What has kept temperatures from rising at an even higher rate
A．The absorption of carbon dioxide by natural factors.
B．Human effort to reduce carbon dioxide emissions.
C．Drastically reduced emissions of greenhouse gases.
D．A 10% decrease in the average weight of polar bears.
相关试题