Question

Which fossils are formed by sediments and found in sedimentary rock?

a mold of a fish skeleton and a cast of a clamshell
a cast of a clamshell and a frozen animal
a frozen animal and a piece of petrified wood
a piece of petrified wood and a preserved insect

Answer 1

The answer is Choice "A"

Step-by-step explanation:

Answer 2

The fossils that are formed by sediments and found in sedimentary rock are:

A mold of a fish skeleton and a cast of a clamshell
Molds and casts are two types of fossils commonly formed in sedimentary rock. A mold is an impression of an organism left in the sediment, while a cast is a three-dimensional copy of the organism that fills the mold. Fish skeletons and clamshells are common fossils found in sedimentary rock, and their molds and casts are often preserved.