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...
Select the correct answer. Which of the following elements makes up the majority of Earth's atmosphere? a. Oxygen b. Hydrogen c. Argon d. Nitrogen Elements in the atmosphere Although the Earth's atmosphere contains a lot of nitro...
Which terrestrial planets have mostly carbon dioxide atmospheres? What is the second most prevalent gas in Earth's atmosphere? What are terrestrial planets' atmospheres made of? Which of the terrestrial planets does not have an atmosphere?
The terrestrial planets are mostly rocks: dense rocky and metallic material, with minor amounts of gases. The Jovian planets, on the other hand, contain a large percentage of the gases hydrogen and helium, with varying amounts of ices: mostly water, ammonia, and methane ices. The Jovian ...
Venus (金星) has long been one of the most misunderstood planets. Like the earth, Venus has its own atmosphere. However, the atmosphere is much thicker than that of the earth, which makes it difficult for modern scientists to study. There is much we still do not know about what this pla...
are probably not very realistic. Based on studies of our closest neighbor planets, Mars and Venus, and also considering evidence from Earth' s sedimentary rocks, it seems probable that Earth' s early atmosphere was rich in carbon dioxide rather than methane. On both Mars and Venus, carbon dio...
In fact, water probably once dominated the Venusian atmosphere. Venus and Earth are similar in size and mass, so Venusian volcanoes may well have outgassed as much water vapor as on Earth, and both planets would have had about the same number of comets strike their surfaces. Studies of how...
Individual specimens of Allende are covered with a black, glassy crust that formed when their exteriors melted as they were slowed by Earth's atmosphere.When broken open, Allende stones are revealed to contain an assortment of small, distinctive objects, spherical or irregular in shape and embedded...
like how NASA slingshots its spacecraft with the gravity of other planets. If someone ahead of you has been nasty, and if you are nice, and if you can convey that you are on the server’s side (without being explicit), you often get much better service than the jerks do. The contra...
whose orbit brings it closer to the Earth than any other planets. A study of Venus’ atmosphere shows a type of gas is in its atmosphere. The gas, on the Earth, is only produced by very small creatures. If such creatures are found on Venus, it might be the first evidence of life ex...