Nitrogen is the most gas found in the earth’s atmosphere

What is the function of nucleic acids

Penelope studies how the structure and function of the nervous system is related to behavior. she is a psychologist

The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis