百度试题 结果1 题目3. The atmosphere of Mars is(be ) made up mostly of carbon dioxide. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
The exploration of Mars has attracted a lot of attention. What is the atmosphere of Mars mainly composed of? A. Oxygen and nitrogen B. Carbon dioxide C. Hydrogen and helium D. Methane 相关知识点: 试题来源: 解析 B。火星的大气层主要由二氧化碳组成。选项 A 氧气和氮气不是火星大气层主要成...
as well as that of its two moons, is pitted with impact craters formed by meteoroids falling in from space. As on our Moon, the smaller craters are often filled with surface matter-mostly dust-confirming that Mars is a dry desert world. However, Martian ...
Which gases made up most of Earth's early atmosphere? What is the most abundant gas in Earth's atmosphere? Which terrestrial planets have mostly carbon dioxide atmospheres? What is the second most prevalent gas in Earth's atmosphere?
【题目】The surface of Mars is ___like the surface of Earth than___ planet in our solar system (太阳系). A. much;the other B. much;any other C. more;the other D. more;any other 试题答案 在线课程 【答案】D 【解析】试题分析:根据题意可知用比较级;句意:火星的表面比起在我们的太阳...
The gravity on the surface of Mars is about ___ as strong as it is on the earth. 相关知识点: 试题来源: 解析 A: 正确 one third B: 错误 two thirdsC: 错误 a quarterD: 错误 a half答案:A解析:火星表面的引力约为地球表面的三分之一。故答案为A项,A项意为“三分之一”,B项意为“三分...
根据第三段“The idea goes like this:When Mars was cold and frozen, volcanoes continued to belch out the greenhouse gases like carbon dioxide and hydrogen into the atmosphere. There, the gas blanket trapped heat and warmed the planet up until liquid water began to flow, forming Mars’ rivers...
They think Mars may have experienced a series of climate cycles. The idea goes like this: When Mars was cold and frozen, volcanoes continued to belch out the greenhouse gases like carbon dioxide and hydrogen into the atmosphere. There, the gas blanket trapped heat and warmed the planet up ...
(2) What is Kasting's theory based on? A . Large asteroids had no impact on Mars. B . Volcanic eruptions were very frequent on Mars C . Vast valleys couldn't be formed in a short period of time. D . Carbon dioxide and hydrogen were abundant in the atmosphere (3) What does th...
The gravity on Mars is only about ___ of that on Earth. A.1/2B.2/3C.1/8D.3/8 试题答案 在线课程 D 考查常识和课本内容。句意“火星上的重力大约是地球上的3/8。”故选D。 练习册系列答案 书立方期末大考卷系列答案 中招试题详解暨中招复习指导系列答案 小学升学...