Answer:
trace fossils
Explanation:
Trace fossils are fossils that provide information about the biological activities and behaviors of past organisms.
Physical Weathering in Nature. When water in a river or stream moves quickly, it can lift up rocks from the bottom of that body of water. When the rocks drop back down they bump into other rocks, and tiny pieces of the rocks can break apart. Many rock surfaces have small crevices on them.
Ex: Unloading.
