To make electricity using magnets you need a magnet, wire

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.

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.