31. The theory of matter states that all particles of matter are in constant motion.

After cloud droplets form, what must happen to them for precipitation to occur?

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3