Organisms that need nitrogen to survive are all living organisms.
only animals.
only bacteria.
only plants.

Which is true of chemicals? a. things containing chemicals always cost a lot of money. b. chemicals are never dangerous. c. chemicals are in many substances in a home. d. chemicals are rarely found on earth.

2points why do scientists need governmental funding? o a. government politicians ask all the important scientific questions. o b. scientists have to pay taxes to the government on the money they make. o c. the cost of doing scientific research can be very high. o d. the government is controlled by scientists. submit

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?