Among the following planets, which one has a very thick atmosphere mainly composed of carbon dioxide? A. Earth B. Mars C. Venus D. Neptune 相关知识点: 试题来源: 解析 C。解析:金星有非常厚的大气层,主要由二氧化碳组成。地球的大气成分较为复杂但不是以二氧化碳为主,A错误;火星大气层很稀薄,B...
stars, planets and asteroids C. stars, gas and dust D. stars, moons and comets 相关知识点: 试题来源: 解析 C。本题考查银河星系的组成成分。银河星系主要由恒星、气体和尘埃组成,选项 A 中行星并非其主要组成部分,选项 B 中的小行星不是主要成分,选项 D 中的卫星和彗星也不是主要成分。反馈 收藏 ...
The Planets, Op. 32, orchestral suite consisting of seven short tone poems by English composer Gustav Holst. Its first public performance took place in 1920, and it was an instant success. Of the various movements, “Mars” and “Jupiter” are the most f
Astronomy.any of thousands of small celestial bodies that revolve about the sun in orbits chiefly between those of Mars and Jupiter ranging in diameter from one mile to 480 miles. Also calledasteroids, minor planets. —planetoidal,adj.
The inner planets are: Mercury, Venus, Earth, and Mars. They are relatively small, composed mostly of rock, and have few or no moons. The outer planets include: Jupiter, Saturn, Uranus, Neptune, and Pluto (a dwarf planet). They are mostly huge, mostly gaseous, ringed, and have many ...
The solar system ___ nine planets. Five doctors and three nurses ___ the team. 试题答案 在线课程 答案: 解析: consists of(is made up of, is composed of), consists in, consists of(is made up of, is composed of), consists of(is made up of, is composed of), make up. 练习册系列...
The planets become slightly slower, but since we only send out one robot after another and rarely so, the effect on the motions of the planets is completely negligible. In the case of the LMC and SMC moving past the MW, the effect is however extremely important because of the very large...
Jupiter is primarily composed of hydrogen and helium, with traces of other elements like methane, ammonia, and water vapor. Unlike the terrestrial planets, Jupiter has no solid surface, and its atmosphere gradually transitions into a dense, liquid interior. ...
Venus and Earth are commonly regarded as twin planets but not identical twins.They are about the same size, are composed of roughly the same mix of materials, and may have been comparably endowed at their beginning with carbon dioxide and water.However, the twins evolved differently, largely be...
of which the Rock-forming minerals are composed—silicon, calcium, sodium, and so forth—formed metallic and Rocky clumps that orbited the Sun. Repeated collisions caused these masses to coalesce into larger asteroid-size bodies, called protoplanets, which in a few tens of millions of years ...