Which is an example of mechanical weathering? hydrated minerals
iron oxide
water moving over rocks
limestone cave formations

Using the periodic table, complete the table to describe each atom. type in your answers. a ? b? c? d? e? f?

Which common material is an example of a polymer? (25 pts) a. steel b. plastic c. petroleum d. rubbing alcohol

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils. the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.