Einstein also said that gravity can affect not just mass but... A. nothing else, just mass.

B. light waves or energy

C. everything.

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

  the mississippians were considered to be  horticulturalists, which means they were