Q:

What is sand made out of?

A:

Quick Answer

The composition of sand is dependent on the geographical area where the sand is located. Most sands are composed of small land sediment particles, minerals, rocks and organic matter that has been eroded and ground down over many years. For this reason, sand composition varies greatly.

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Full Answer

Sand occurs naturally and is mostly composed of rock and mineral particles that have been broken down to a fine consistency. Different sand types around the world are defined by their size, coarseness and texture. The composition of sand differs depending on the types of rocks and minerals found in the area. The most common type of sand is silica sand, which is rich in silicon dioxide. The second most common type is calcium-carbonate sand which is rich in calcium and forms from organic matter such as coral and shellfish.

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    How are outwash plains formed?

    A:

    Outwash plains form when melt from glaciers deposit sand, sediments, gravel and clay along broad, sloping land. These landforms can be created quickly due to rapid water action and are often several layers thick due to irregular water flow from seasonal melting and refreezing.

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  • Q:

    What does a plateau look like?

    A:

    A plateau is a raised area of land, much like a mountain with a flat-looking top. A plateau may have one or more steep sides. Plateaus occur in various areas of the world and have different visual characteristics such as grasslands or desert terrain.

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    How does an artesian well form?

    A:

    Artesian wells form when water flows through a permeable rock from a higher area to the area of the well. Artesian wells produce water flow without any additional pumping because of the water pressure in the rock, so they require a layer of impermeable rock beneath the permeable rock to block the flow downward. Thus, when a well is dug into the permeable rock, the water flows out under pressure.

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    What is the difference between plains and plateaus?

    A:

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