Consider the following statements made about the sedimentary rocks:1. Sedimentary rocks are formed at earth's surface by the hydrological system.2. The formation of sedimentary rocks involves the weathering of pre-existing rocks.3. Sedimentary rock contain fossils.4. Sedimentary rocks typically occur in layers.Which of these statements are correct?

Consider the following statements made about the sedimentary rocks:1.

1.	Consider the following statements made about the sedimentary rocks:1. Sedimentary rocks are formed at earth's surface by the hydrological system.2. The formation of sedimentary rocks involves the weathering of pre-existing rocks.3. Sedimentary rock contain fossils.4. Sedimentary rocks typically occur in layers.Which of these statements are correct?
A.	1 and 2
B.	1 and 4
C.	2,3 and 4
D.	1,2,3 and 4
Answer» E.