In what way is sedimentary rock formation in nature like a sieve?
A. Sedimentary rocks are filtered over time.
B. Rocks go through many stages during their formation.
C. Particles of sediment are sorted by size in different environments.
D. Larger rock fragments collect at the top of sedimentary rock layers

Question

In what way is sedimentary rock formation in nature like a sieve?
	A.	Sedimentary rocks are filtered over time.
	B.	Rocks go through many stages during their formation.
	C.	Particles of sediment are sorted by size in different environments.
	D.	Larger rock fragments collect at the top of sedimentary rock layers

alfordabby · Answer

The processes that form sedimentary rocks sort the raw materials by size. 

When sand, silt, and clay are carried down a river and enter the ocean, sand drops out of suspension first, then silt, then clay. The coarser grained material is deposited nearer the shore and the sediment gets finer and finer as you move further into the ocean.

So it's definitely not B. What do you think it is?

alfordabby · Answer

Just in case you don't know what a sieve is it's a utensil with a frame, that strains solids from liquids, for separating coarser from finer particles, or for reducing soft solids to a pulp.

alfordabby · Answer

I believe that the answer is D.