WATER AND LIFE ON MARS The presence or absence of water has a direct bearing on the possibility of life on other planets. In the nineteenth century, it was commonly accepted that life, perhaps even intelligent life, was widespread in the solar system, and Mars was an obvioustarget in the ...
C. Whether signs of water indicate that life has existed on Mars D. How soon astronauts from Earth will be able to go to Mars 你的答案: 正确答案:C 题目解析: 登录 后才能查看题目解析,还没有账号? 马上注册 推荐文章: 【托福阅读】Official 30-P1 玩耍的作用 【托福阅读】Official 14-P2...
The question of life on Mars depends heavily on the characteristics of its air and water. Mars has a relatively thin and dry atmosphere, with high percentage of carbon dioxide compared to Earth's atmosphere. Mars tilts about25°,which leads to seasons like those on Earth. Carbon dioxide freez...
The presence orabsenceof water has a direct bearing on the possibility of life on other planets. In the nineteenthcentury, it was commonly accepted that life, perhapsevenintelligentlife, waswidespreadin thesolarsystem, and Mars was anobvioustargetin the search for life. Newphotographictechnology off...
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2.Scientists remain fascinated by the possibility of liquid water on Mars. Life as we know it requires water so it should be good marker for habitability. Current conditions on Mars suggest that liquid water could not occur on the surface. The low pressure and low temperature mean that ice ...
托福考试日期: 2019年1月12日 托福考试内容回忆: Water and Life on Mars 本文通过各种线索探究火星上是否有生命存在,要点包括:火星表面没有水这一事实大大降低了火星存在生命性征的可能性;火星的陨石坠落到地球上,为科学家提供了有价值的研究依据:首先分析发现陨石中含有碳元素,然而碳只有在有水的条件的情况下才能...
新托福TPO8阅读原文(三):Running Water on Mars TPO-8-3：Running Water on Mars Photographic evidence suggests that liquid water once existed in great quantity on the surface of Mars. Two types of flow features are seen: runoff channels and outflow channels. Runoff channels are found in the...
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Running Water on Mars题型分类：否定事实信息题 题干分析：对应第三段 原文定位：第二句“A 2003 Mars Global Surveyor image shows what mission specialists think may be a delta—a fan-shaped network of channels and sediments where a river once flowed into a larger body of water, in this case a...