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...
解析 C。解析:本题考查句子结构。同位语从句用于对名词作进一步解释说明,此处“which has a unique atmosphere and is located in a distant galaxy”是对“a new planet”的解释说明,所以是同位语从句。定语从句是对先行词的修饰限定;状语从句在句子中作状语;主语从句在句子中作主语。
A. The new planet is very close to Earth. B. The new planet has no atmosphere. C. Scientists have already landed on the new planet. D. The new planet was discovered by accident. 相关知识点: 试题来源: 解析 D。本题考查细节理解。A 选项文章未提及新行星与地球的距离很近;B 选项文章未提...
A. The new planet is very similar to Earth. B. Scientists have already visited the new planet. C. The new planet is located far away from our solar system. D. The new planet has no atmosphere. 相关知识点: 试题来源: 解析 C。文章中提到新行星位于远离我们太阳系的地方,A 选项文中未提及...
A. All planets have the same size. B. Planets move around the sun in a fixed orbit. C. Planets don't have any atmosphere. D. There are only E. ight planets in the universe. 相关知识点: 试题来源: 解析 B。文中提到行星围绕太阳沿着固定轨道运行,B 选项符合文中细节。反馈...
"Atomsphere" is an incorrect spelling. "Atmosphere" refers to the envelope of gases surrounding the Earth or another planet.
on the sun or any of the stars because they are far too hot.Living molecules are also damaged by X—rays,and many of them by ultraviolet rays,so they are not likely to exist on a planet close to the sun or any other star where there is no atmosphere to keep off these radiatiorls....
Itis due to this revolution thatthe Earth faces changes init climate each year and that s why we have dfferent seasons in the year. As volcanoes eruptand pour out lava(岩浆),they also release tiny matter into the atmosphere, which have aneffect on the climate of the region.However, ...
Life on Earth would not be possible without the atmosphere. Obviously, it provides the oxygen we need to breathe. But it also serves other important functions. It moderates(缓和)the planet's temperature, reducing the extremes that occur on airless worlds. For example, temperatures on the moon ...
What planet is Neptune from the sun? What are Neptune's moons? Which planet has the most eccentric orbit? Which planet has the most volcanoes? What is the brightest planet? Which planet has the greatest attraction to the sun? What planets in our solar system have no atmosphere?