Choose the word that best completes each sentence. Plants are
. They make their own food.

Animals are
. They consume other organisms for food.

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

Examine the equation. 23490th→23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a.a piece of paper b.a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block

Which graph represents motion with an object with positive velocity that is located at a position of 3 meters at a time of 0 seconds? a) a b) bb eliminate c) c d) d