Answer:
sediment can only form by weathering, erosion, and deposition
C6H12O6, MgCL2, NaCl are compounds
Pb is element
O2 is neither compound nor element, it's a molecule. But if must need to categorize it, then you can consider it in element, but remember it's not an element
Gravity is pulling the skydiver down therefore gravitational force
The world's largest mass extinction was the Permian-Triassic event about 250 million years ago, which wiped out 95% of earth's species. It marked the end of the Paleozoic era …and the beginning of the Mesozoic.
