Rocks are classified by *
A) how they are formed
O B) when they were formed
OC) where they were formed
O D) their color when formed

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.

Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.

The valence of aluminum is +3, and the valence of the chlorine is -1. the formula fir the aluminum chloride is correctly written as