Q69
Choose the correct statement about Sedimentary rocks ________
A.
These rocks cannot be formed under water
B.
These rocks are crystalline
C.
The structure of these rocks is contingent on heat and pressure
D.
These rocks have been deposited in layers
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Sedimentary rocks have layers because of different depositions of sediments (small broken pieces of rocks) over time. The different groups of sediments could have been deposited through wind, water, ice, and/or gravity at different intervals of time and compacted on top of each other, until they create a sedimentary rock that has several different types of sediments (possibly from different rock types) in the form of layers.