tundra- a vast treeless plain in the Arctic regions where the subsoil is permanently frozen champaign,plain,field- extensive tract of level open land; "they emerged from the woods onto a vast open plain"; "he longed for the fields of his youth" ...
Climate change is warming the Arctic tundra (冻原) about four times faster than the rest of the planet. Now, a study suggests that rising temperatures will boost underground microbes (微生物) there to produce more carbon dioxide (CO_{2})——potentially creating a feedback loop that worsens ...
01 This is Scientific American's 60-second Science, I'm Annie Sneed.The Arctic's permafrost is melting—and fast. That's bad news, because these frozen soils store billions of tons of carbon, just waiting to be unleashed. So is there a way to save the permafrost? One team of researche...
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Arctic Tundra: Life at the North PoleSalvatore Tocci
Most of the land in Alaska is in what many Alaskans call "the Interior " The Interior is full of mountains , glaciers , and Arctic tundra.The climate is freezing cold , and it can also be quite dry . Very few people live in this part...
Sign up with one click: Facebook Twitter Google Share on Facebook tundra climate [′tən·drə ‚klī·mət] (climatology) The climate which produces tundra vegetation; it is too cold for the growth of trees but does not have a permanent snow-ice cover. ...
A. Tundra climate B. Tropical highland climate C. Temperate marine climate D. Subtropical arid climate 相关知识点: 试题来源: 解析 A。解析:苔原气候主要分布在北极圈周围。苔原地区气温极低,植被以苔藓、地衣等低矮植物为主。热带高地气候分布在热带的高原山地地区。温带海洋性气候主要分布在中纬度大陆西岸。
Ⅳ.阅读理解The climate of the westcoast is the most moderate inCanada. Summers are cool andfairly dry and winters are warm,cloudy and wet. Even inmid winter, average temperaturesare usually above freezing.The central plain from the Rocky Mountains to theGreat Lakes is characterized by cold win...
IV.阅读理解The climate of the westcoast is the most moderate inCanada. Summers are cool andfairly dry and winters are warm,cloudy and wet. Even inmid winter, average temperaturesare usually above freezing.The central plain from the Rocky Mountains to theGreat Lakes is characterized by cold win...