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Because of weather erosion. Earth has a thicker atmosphere than the moon, say, which has no atmosphere at all, and thus, no wind, water or rain to wash away the marks left by meteors or asteroids that hit the surface of the planet. Earth is hit by things all the time, but are washed or wiped away quickly by snow, rain, wind, etc.
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Forms earth's hard surface?
rock
What material forms earth's hard surface?
Constructive Force
Why are minerals that form below Earth's surface unstable at Earth's surface?
because of high tempreture
If there were no lad on Earth's surface what would the pattern of surface currents look like?
dont know this is a hard one
What are the hardest to softest layers of earth?
the hardest layer of the earth's surface is the crust because it is made up of rocks and other hard materials
Why do you see several impact craters on the earth but few on the moon?
There are relatively few craters identified on the surface of the Earth while there are thousands (millions) on the moon. It is hard to find one point on the moon that is not in one crater and there are craters in craters in craters. (See images in related link for Moon.) Obviously, the major reason behind this is that the craters that formed on the Earth eroded over time due to wind, rain and other natural factors which are nearly absent on the moon. Thus Earth's craters disappear over millions of years while the craters on the moon remain for billions of years. (The primary way a crater is made to disappear from the surface of the moon is by having another impact crater formed and the dust and debris from later impacts disturb or destroy or cover the original crater.)
Does earth have many craters?
Yes, they are hard to detect without orbital photography though.
How does the moon get smooth?
Most of the surface of the Moon isn't smooth at all, because of the rocks, hard soil, and many craters that dot the surface.
How might the moon craters and rilles have formed?
when the earth was spinning really hard. a big chunk of the earth spun off and started to orbit the earth
If you drop a marble into a pan of sand what would you be simulating about the moons surface?
that it would be like the craters on the moon and that it is very hard.
What is earth hard surface is formed of?
It is the surface we live on and is known as the Earth's Crust.
If you drop marbles into a pan of sand what would you be simulating about the Moon's surface?
that it would be like the craters on the moon and that it is very hard.
Why does the earth have less impacts than the moon?
The answer is that the Earth has more meteoroids hitting it, but most do not survive to impact the surface. The Earth has a protective atmosphere that burns up a lot of meteors. Most others are slowed enough that they don't make a big crater. The ones that do make it to the surface may fall into water, which covers 3/4 of the planet, and these craters are hard to locate. For land impacts, the actions of the atmosphere (rain, winds etc) erode the impact craters, as does geologic and volcanic action. So what we see are only a tiny number of persistent craters that have avoided obliteration. The Moon does not have any of these forces at work, so almost all of the impacts since the moon was formed can be seen on its surface. The major changes in the craters are made by later impacts at the same locations.
Forms earth's hard surface?
rock
Which make up the hard and rigid surface of the earth?
The lithosphere makes up the rigid surface of the Earth.
The material that forms Earth's hard surface?
rock
What forms Earth's hard surface?
Constructive Force
