Which feature separates humans from other primates

Which would prevent a plant from growing

Fossils can only be formed when? if mud, silt or tar is in the area to preserve the fossil ierosion does not occur and allows the fossil to form oxygen and microorganisms cannot decay the bones the area is dry and does not contain mud or silt

Long-period comets come from the oort cloud particles in earth’s atmosphere material from the asteroid belt the kuiper belt