Which statement explains why oxygen molecules easily diffuse across a cell membrane while glucose molecules do not?

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

How is the carbon cycle related to global warming ?

Scientific evidence is most likely to be consistent if it is based on data from