Some students make a model to show one of the first steps in the formation of sedimentary rock. The students pour 2 centimeters of light-coloured sand into a clear plastic box. Then they add 1 centimeter of gravel. Finally they pour 2 centimeters of dark-coloured sand on top of the gravel. Which characteristic of sedimentary rock does this model best show?
(1) Sedimentary rock is made of layers.
(2) Sedimentary rock is a decorative rock.
(3) Sedimentary rock is often limestone.
(4) Sedimentary rock is common in Texas.
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(1) Sedimentary rock is made of layers
That is the characteristic, according to me, that is best shown by the above mentioned activity done by students.
That is the characteristic, according to me, that is best shown by the above mentioned activity done by students.
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