<h2>Answer</h2>
Fossils are often found in <u>Sedimentary</u><u> </u><u>rocks</u> because it is formed from the remains of once living things.
<h3>#CarryOnLearning</h3>

the bird is a barn swallow.
The three most common elements are oxygen, carbon, and hydrogen
Answer:
A haploid is a cell with a single set of chromosomes.