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its called a bobshed
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What rock is formed over millions of years from sediments?
Sedimentary rock. Eg Conglomerate.
What is the rock formed as a result of deposits from weathering and erosion?
Sedimentary rock is the rock formed as a result of deposits from weathering and erosion. Sedimentary rock can be millions of years old.
How long does it take to form a rock?
It varies with the type of rock being formed. Some igneous rock is formed in a matter of minutes; some sedimentary rock is formed in processes requiring many millions of years.
Why is it often difficult to know exactly when a rock formed?
Because rocks form and change over millions of years that is why difficult to know exactly when a rock formed.
Is the Grand Canyon mountains?
the grand canyon is layers of rock formed over millions of years
Is granite non renewable?
Yes, granite is a rock that has formed over millions of years. It is non-renewable.
What natural force formed the grand canyon by slowly cutting through the rock over millions of years?
A river
What happened around 800 millions years after earth formed to allow rock formations?
earth cooled suffciently
And organic sedimentary rock that forms from the action of heat and pressure on plant material over millions of years is called?
They are called Biologic sedimentary rocks. Formed when large number of living thing die.
Why rocks are found in layers?
they are found in layers because over the millions of years they have formed over the top of each other and eventually formed a rock
How is sedimentary rock formed into coal?
It isn't. Coal is the compressed remains of plants which lived in swamps and was later covered with sediment and buried under millions of tons of rock for millions of years until it became almost as hard as rock.
What causes metamorphism?
A metaporphic rock is formed when a rock is put under extreame heat and preasure for many (often thousands or millions) of years. This changes it into a new type of rock. This new rock is called a Metamorphic rock.
