What is the stuff that buries everything on the surface of the earth over time?
And why does'nt it run out?
Answers:
It's sediment, like mud and sand. It comes from the slow mechanical and chemical weathering of rocks that are pushed up by tectonic forces (or a minor amount comes straight out of volcanos). Sediment is carried by wind and water and, where it is allowed to collect and is buried, over time it turns in to sedimentary rock. And might be pushed up to erode and create sediment again sometime. Or be subducted down deep and turned in to magma and rise up again. Basically, everything is recycling round and around.
Dust..(or is it Bacteria poo)
dust..and it constantly produced by natural occurrences everywhere, all the time.
cosmic dust and particles from outer space
It's dirt. It will never run out because we live on it.
The stuff I keep dusting out of the house. Dust..
you may be surprised but it is actually earthwormsthey move the earth around a lot (because there are so many of them) and eventually over decades the architecture is covered by the soil. It doesnt run out because its just being moved around.
A nuclear bomb and a nutter in North Korea!
Its dead stuff, decaying. Leaves, aminals, foliage etc.
It'll run out when the earth dies.
We've had this question a few times recently is it a coursework question or something ?
Dirt. It comes from outer space. Space dirt. If you stood still long enough you would be covered too. Except in New York City, where it is caused by pigeons, which is far worse.
I'd go for space dirt over pigeons any day.
SEDIMENT
dirt. It keeps weathering and eroding form mountains which keep getting pushed up as the plates collide
The only thing I know that buries everything is my mate's labrador..
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Answers:
It's sediment, like mud and sand. It comes from the slow mechanical and chemical weathering of rocks that are pushed up by tectonic forces (or a minor amount comes straight out of volcanos). Sediment is carried by wind and water and, where it is allowed to collect and is buried, over time it turns in to sedimentary rock. And might be pushed up to erode and create sediment again sometime. Or be subducted down deep and turned in to magma and rise up again. Basically, everything is recycling round and around.
Dust..(or is it Bacteria poo)
dust..and it constantly produced by natural occurrences everywhere, all the time.
cosmic dust and particles from outer space
It's dirt. It will never run out because we live on it.
The stuff I keep dusting out of the house. Dust..
you may be surprised but it is actually earthwormsthey move the earth around a lot (because there are so many of them) and eventually over decades the architecture is covered by the soil. It doesnt run out because its just being moved around.
A nuclear bomb and a nutter in North Korea!
Its dead stuff, decaying. Leaves, aminals, foliage etc.
It'll run out when the earth dies.
We've had this question a few times recently is it a coursework question or something ?
Dirt. It comes from outer space. Space dirt. If you stood still long enough you would be covered too. Except in New York City, where it is caused by pigeons, which is far worse.
I'd go for space dirt over pigeons any day.
SEDIMENT
dirt. It keeps weathering and eroding form mountains which keep getting pushed up as the plates collide
The only thing I know that buries everything is my mate's labrador..
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