Which planet has a very thick atmosphere mainly made of carbon dioxide? A. Mars B. Venus C. Earth D. Jupiter 相关知识点: 试题来源: 解析 B。解析:Venus(金星)的大气层非常厚,主要由二氧化碳组成。Mars的大气层比较稀薄,Earth的大气层主要由氮气和氧气等组成,Jupiter的大气层成分复杂但不是主要由...
The planet which has a very thick atmosphere mainly composed of carbon dioxide is _. A. Venus B. Mars C. Jupiter D. Neptune 相关知识点: 试题来源: 解析 A。解析:金星(Venus)有非常厚的大气层,其主要成分是二氧化碳。火星(Mars)大气层很稀薄,木星(Jupiter)大气成分复杂但不是以二氧化碳为主,海王星...
The more carbon dioxide people pump into Earth's atmosphere, warming the planet, the more carbon dioxide and heat slip into the oceans. 1 But they aren't the only ocean dwellers facing unwanted home renovations. Anything with a shell is at risk. So, too, may be certain fish. A new ...
解析:Parallelism; IdiomThis sentence describes an exchange between the atmosphere and the Earth’s surface using the paired phrases on the one hand and on the other. Preceding both phrases with nouns creates a parallel grammatical structure: the atmosphere on the one hand and the oceans and terre...
its atmosphere). The primary greenhouse gases inEarth’s atmosphereare water vapor, carbon dioxide, methane, nitrous oxide, and ozone. Without greenhouse gases, the average temperature of Earth’s surface would be about -18 °C (0 °F), rather than the present average of 15 °C (59 °F...
"This is the first demonstration of actually using resources on the surface of Mars and transforming(5) them( they) chemically into something useful for a human mission," Jeffrey Hoffman,a(6) retired( retire) astronaut,said. " The thin atmosphere on Mars is 96 percent car...
scanning for evidence that life may have once existed there and also testing a new technology designed to extract oxygen from the Martian atmosphere, which is 96% carbon dioxide. It will also monitor the climate and seasons on Mars, all of which could be helpful for future human explorers, ...
atmosphere, surface, and crust. It is in fact supplied continuously by biological processes; without life, there would be virtually no free oxygen. The 1.8 parts per million ofmethanein the atmosphere is also far out ofchemical equilibriumwith the atmosphere and crust: it, too, is of ...
CO2-rich atmosphere on TRAPPIST-1 c suggests a relatively volatile-poor formation history, with less than{9.5}_{-2.3}^{+7.5}Earth oceans of water. If all planets in the system formed in the same way, this would indicate a limited reservoir of volatiles for the potentially habitable planet...
Because Neptune orbits in a nearly circular path at 30.1 AU, Pluto is for a small part of each revolution actually closer to the Sun than is Neptune. Nevertheless, the two bodies will never collide, because Pluto is locked in a stabilizing 3:2 resonance with Neptune; i.e., it completes...