Question

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1.write any three points of difference between the three layers of the earth
2.Write any three characterstic of each type of rock
3.What is the rock cycle
4.What are sedimetry rocks ​

Answer 1

Answer:

1) a) the earth is made up of three different layers:

The crust, the Mantle and the core.

b) this is the outside layer of the earth and is made up of solid rock ,mostly basalt and Granite.

c) Oceanic crust is denser and thinner and mainly composed of basalt.

2) a) the three main types of rocks are sedimentary , Metamorphic and igneous rocks.

b) sedimentary rocks are formed from particles of sand , peebles and other fragment of materials.

c) together all these particles are called sediments.

3) The Rock cycle is a concept used to explain how the three basic Rock types are related and how Earth processes over geologic time change the rock from one type into another. plate tectonic activity along with weathering and erosional processes are responsible for the continuous cycling of rocks.

4) sedimentary rocks are formed from pre-existing rocks are pieces of once living organism. they form from deposits that accumulate on the earth surface. sedimentary rocks often have distinctive layer or bedding.