In order for a cast fossil to form, there must first be a fossil. petrified remains
carbon film
preserved remains
mold
(Pick one of the options)

How do convection currents form underwater mountains?

Asimilarity between the governments of israel and iran is that a both are considered democracies b. both are ruled by a prime minister c. both give men and women voting rights d. neither allows political parties to exist

Scientists think that convection currents flow in earth’s a. continents. b. mantle. c. lithosphere. d. inner core.