Answer:
The earth.
Explanation:
A spherical or rounded object.
Sedimentary rocks form from layers of earth pressuring rock over time this rock become sedimentary. Since this rock is so old it is more likely to contain fossils than other rock formations. The other rock formations are usually newer and formed by lava or magma.
Answer:
Most likely the chicken because if it was egg first the baby inside the egg would die because it needs to stay warm but if there were no chickens then the egg wouldn't be warm and it would die
Explanation: