Which fossils are formed by sediments and found in sedimentary rock? A. a mold of a fish skeleton and a cast of a clamshell
B. a cast of a clamshell and a frozen animal
C. a frozen animal and a piece of petrified wood
D. a piece of petrified wood and a preserved insect

Which statements best describe energy? check all that apply. the total amount of energy in the universe remains constant. the total amount of energy in the universe changes constantly. energy cannot be converted from one form to another. energy can be converted from one form to another. energy cannot be created or destroyed. energy can be created or destroyed.

Which wave would cause destructive interference at every point of the wavelength and completely cancel out the wave?

The chemical formula for carbonic acid, a compound used in carbonated drinks, is h2co3. assume that these symbols represent the three elements of this compound: