doi:10.2307/4011102Richard MonasterskyJohn Wiley & Sons, Ltd.Science NewsR. Monastersky, "Sea change in the arctic: an oceanful of clues points to climatic warming in the far north," Science News, vol. 155, pp. 104-106, 2009.
The first Arctic bears were brown bears, a species that includes grizzly bears. (北极熊统治着冰冻的海洋,但它们的祖先并不总是为冰雪而生。最早的北极熊是棕熊,包括灰熊)”可知,最早的北极熊不是白熊,是棕熊,包括灰熊,颜色要深一些。因此,我们对北极熊的祖先A项“They were a darkercolored species.(...
With terrifying speed, the bear comes to life and moves toward the whale. In a moment it is over, and the bear eats his first meal in nearly a week.Polar bears rule the frozen sea, but their ancestors weren't always built for ice and snow. The first Arctic bears were brown bears, ...
C.ThegraduallossofseaiceintheArcticOcean. D.ThedeathoffishintheArcticOcean. 9.WhatcanweIeamfromParagraph2? A.Alaskawilldisappear. B.There'smoreandmoreseaiceintheArcticOcean. C.10%oftheseaiceintheArcticOceanmeltseachday. D.ArcticriversbringmoreheattotheArcticOcean. 10.Whatdoestheunderlinedword“pr...
the influence of the weather change on the polar bears in the Arctic Ocean C. one step to save the endangered polar bears D. the fact that the number of the polar bears is decreasing 试题答案 在线课程 答案:1.D;2.C;3.B;4.A;5.D; ...
Sea ice in the Arctic Ocean is a key component of the modern climate system, but less is known about the evolution of Arctic sea ice throughout Earth's history, particularly in warmer climate states. Following early Palaeogene greenhouse conditions, seasonal sea ice in the Arctic developed duri...
In light of global change, this SLR could be a manifestation of warming in the Arctic coupled with a decrease of sea ice extent, warming of Atlantic waters, changes in the Arctic Ocean circulation, and an increase in coastal erosion and thawing of permafrost.We have analyzed monthly mean sea...
life on the earth. It may help us discover new medicines, as well as new sources of food and energy. 5. (access) the deep ocean may also help us to predict events such as earthquakes.? The population of the world is growing and we need new resources 6.___ future development. There...
atthetopoftheworld.TheArcticOceanisthe smallestoftheworld’soceans.Unlikeothers, muchofitiscoveredwithice.Theiceisthick. Youcanwalkonit.Youcanjumponit.Insome places,theiceis20feet(about6m)deep ormore. 3 cientistsliketostudythismostunusualbody ofwater.Theystudytheanimallifethatliveson topoftheice.Th...
1.Today, due to the rapid development of science and technology, human is facing anew era of exploration of ocean, so people say that the 21stcentury is the ocean century. 如今,由于科学技术的快速发展,人类迎来了海洋探索的新时代,所以人们也把21世纪叫做海洋世纪。 2.Now more and more people be...