Study the diagram of radioactive decay. Which option identifies what the arrows in the diagram represent? atoms and elements elements and gas energy and particles gas and atoms.

What is the correct equation for cellular respiration?

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.