What is true of all particles of gas enclosed within a container? they move at different speeds. they have the same kinetic energy. they never collide with each other.

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins

Nan element’s square on the periodic table, the number with the greatest numerical value represents the

Which answer tells the reason the earth’s climate is getting warmer? too many animals are becoming extinct. large glaciers are melting in antarctica. the earth is moving closer to the sun. driving cars gives off gases that trap heat in the atmosphere.