Can someone me with questions 8 and 9 plz. i will really appreciated it

When a scientific theory has been tested and proved by the scientific community, it becomes a law

Which of these is a density dependent factor? a. epidemic b. earthquake c. drought d. hurricane

Which of the following is true about the products formed during photosynthesis? (5 points) select one: a. they have the same mass as the mass of reactants. b. they are the same set of compounds as the reactants. c. they have more mass than the mass of reactants. d. they are chemically the same as the reactants.