When unnatural pollutants are exposed to sunlight and heated up, they create a. ozone
b. carbon dioxide
c. nitrous oxide
d. greenhouse gases

Which statements correspond to cellular respiration? co2 diffuses passively into the cell. co2 diffuses passively out of the cell. co2 must be pumped out of the cell. o2 diffuses passively when produced inside the cell. o2 diffuses passively when converted to co2. o2 is pumped in and forces co2 out.

Which geologic feature would most likely be represented by contour lines john far apart from one another? a cliff a hill a plain a valley

Diagram of the evolution of land plants?