Aclass wants to find the ideal temperature for plants to grow in a terrarium. if the students set up several terrariums, what should they do to get the best results? a. plant different kinds of plants in each terrarium. b. use a light bulb with different brightness in each terrarium. c. add different amounts of water to each terrarium d. use different fertilizers in each terrarium

How is electrolysis most commonly used to produce an energy source? a - splitting water molecules produces oxygen, which organisms breathe to fuel their bodies. b - splitting water molecules produces hydrogen gas, which is used to power machines through hydrogen fuel cells. c - splitting carbon dioxide molecules produces coal, a form of carbon that can be burned to produce heat. d - splitting carbon dioxide molecules produces natural gas, which can be burned to generate electricity in power plants.