Geography

Question

Which of the following is/are true of sedimentary formations?

They are widely used within the area in which they appear.

0 They are thick enough to appear on a geological map.

O They are not thick enough to appear on a geological map.

O They are distinct from other beds above and below it.

Answer

They are distinct from other beds above and below it.

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Sedimentary formations are layers of sediment that have been deposited and compacted over time. They are distinct from other beds above and below it because they are formed under different conditions and contain different types of sediment. For example, a layer of sandstone may be sandwiched between layers of shale, indicating a change in the environment from a river or beach to a swamp or lake. Sedimentary formations are often thick enough to appear on a geological map, which is a map that shows the distribution of rock formations and other geological features. They are also widely used within the area in which they appear, as they can provide valuable information about the history of the area and the types of resources that may be present.