How do clastic sedimentary rocks form?
a.
fragments of rock are squeezed and cemented together.
b.
plant and animal remains are squeezed and cemented together.
c.
solid chemicals in water harden and form rocks.
d.
lava cools and hardens into rock.

The correct answer would be A.  Fragments of rock are squeezed and cemented together.

Clastic sedimentary rocks refer to the group of rocks formed by clasts or pieces of pre-existing rocks.

Four basic steps are involved in the formation of clastic sedimentary rocks:

b is the correct answer

the sun's light combined with the visible wavelenghts form what is called ultraviolet radiation, which are the long waves at the end of a visible light sprectrum.

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bioteacher101