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Layers or strata in sedimentary rock are composed of deposited smaller rock particles and possibly organic matter.

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What are aquifers made of?

Aquifers are underground layers of rock or sediment that hold water. They can be made of various materials such as sand, gravel, or porous rock that allow water to pass through and be stored underground.


What is the definition of dike in science?

In science, a dike is a sheet of rock that cuts across the structure of adjacent rock layers. Dikes are formed when magma intrudes into existing rock layers and solidifies. They are often made of igneous rock and can vary in thickness and length.


Which two layers of the earth are made of rock?

The two layers of the Earth that are made of rock are the crust and the mantle. The crust is the outermost layer and is composed of solid rock, while the mantle lies just below the crust and consists of solid rock that is capable of flowing over long periods of time.


What kind of rock has layers and is made from small grain?

A type of rock that has layers and is made from small grains is sedimentary rock. Sedimentary rocks form when sediments such as sand, silt, or clay are compacted and cemented together over time. Examples of sedimentary rocks include sandstone and shale.


Compare rock layers to a landfill how are they alike and how are they different?

Rock layers and landfills are both composed of stacked materials over time. However, rock layers are formed naturally through geological processes, while landfills are man-made deposits of waste materials. Rock layers provide valuable information about the Earth's history and can contain fossils, while landfills pose environmental and health risks due to the decomposition of waste. Both can be studied to understand past events and human impact on the environment.