The amniotic egg is a characteristic of amphibians. reptiles. birds. both
b. and
c.

When coal has reached it hardest, darkest form, it is called select one: 0 a. sub-bituminous b. lignite c. bituminous d. antrhacite next page

The main ingredient of magma is a pahoehoe. b silca c dissolved gases d obsidian

The scales shown in the introduction measure mass, or the amount of matter in a particular object. the scientific law of conservation of mass states that matter cannot be created or destroyed during a chemical reaction, but it can change from one form to another. did the simulation support this scientific law? explain why or why not.