The tracks of the astronauts who landed on the moon are still there in the dust and show no signs of being worn away. This is attruted to the lack of atmosphere on the moon.
Which of the following best accounts for the lack of atmosphere.
1)the moon's weak gravity
2)the moon's changing weather patterns
3)the distance between the earth and the moon
4)the rotation of the moon about its axis
5)the motion of the moon around the sun
I think is 1
I agree
You are correct! The lack of atmosphere on the moon is primarily due to the moon's weak gravity. Let me explain further.
To understand why the moon has a lack of atmosphere, we need to consider its gravity. Gravity is the force that attracts objects towards each other. The strength of gravity depends on the mass and size of an object. Since the moon is much smaller and less massive than the Earth, its gravitational pull is weaker.
Unlike the Earth, which has a thick atmosphere composed of various gases, the Moon does not have enough gravity to hold on to gases tightly. The weak gravity on the moon allows most of the gases to escape into space. As a result, the moon has an extremely thin and almost non-existent atmosphere.
Now, let's consider the other options provided.
2) The moon's changing weather patterns: The moon does not have weather patterns like Earth, as it lacks an atmosphere where weather phenomena occur.
3) The distance between the Earth and the moon: Although the distance between the Earth and the moon affects various interactions, it does not directly account for the lack of atmosphere.
4) The rotation of the moon about its axis: The rotation of the moon does not directly contribute to the absence of atmosphere.
5) The motion of the moon around the sun: The moon's motion around the sun is not related to the lack of atmosphere.
Overall, option 1, the moon's weak gravity, best accounts for the lack of atmosphere on the moon.