The Earth is like our mother.She gives live to all the living things on the Earth.And she provice us with air、food、water and other things we need for living.Once she was beautiful ahd rich.But mow she is crying, becacuse she is becoming dirtier and dirtier, poorer and poorer. It'...
There are eight planets in our solar system. What is the largest planet? A. Earth B. Mars C. Jupiter D. Venus 相关知识点: 试题来源: 解析 C。太阳系中最大的行星是木星。选项 A 地球不是最大的行星。选项 B 火星也不是最大行星。选项 D 金星同样不是最大行星。
This suggests that our Solar System isn't a typical planetary system, but a relatively rare one. When we look at planets around other stars, we see that planets of a similar mass to Jupiter are found in Earth's spot.这表明，我们的太阳系不是一个典型的行星系，而是一个相对罕见的行星系。...
A. Earth is a star. B. Planets don't move. C. Earth moves around the moon. D. Earth moves around the sun. 相关知识点: 试题来源: 解析 D。A 选项“地球是一颗恒星”错误。B 选项“行星不移动”错误。C 选项“地球围绕月亮转”错误。只有 D 选项正确地表达了文中内容。反馈...
But due to the sun's energy over long periods of time, the cores of planets closer to it couldn’t hold on to light gases very well, so they remained small rocky planets like earth.Meanwhile, though the planets farther out from the sun, their gravitational force kept on pulling in gas...
So molecules like this ended up on Earth. In fact, what we call meteorites are pieces broken away from comets and asteroids that came in our atmosphere and left their extra-terrestrial organic matter on the surface of primitive Earth.这样的分子最终来到了地球上。事实上，我们所说的陨石是来自彗星...
Ⅳ.任务型阅读(20分)There are billions of stars and planets in space.What's the difference (1)stars planets? Stars can give out heat and light, but planets cannot.The sun is one of the stars. Some planets are balls of rock and some are balls of gas. We live on the planet earth. ...
The sun is one of the stars. Some planets are balls of rock and some are balls of gas. We live on the planet earth. The earth spins around once every day to give us day and night. The earth goes around the sun once every year to give us different seasons....
The sun is one of the stars. Some planets are balls of rock and some are balls of gas. We live on the planet earth. The earth spins around once every day to give us day and night. The earth goes around the sun once every year to give us different seasons. ...
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