(ASAP!) Oxygen cycling in Earth's hydrosphere is often found in which of these forms? Choose the correct answer.
O nitrogen oxide, oxygen, ozone
O bicarbonate, dissolved oxygen, water
O carbohydrates, carbon dioxide, ozone
O dissolved carbon dioxide, nitrogen oxide gas

O nitrogen oxide, oxygen, ozone

Explanation:

they kick it to the curb.

explanation:

that current was nasty.

propane is burned to provide the heat in many cooking grills. the chemical reaction for this process is shown in the equation below.

c3h8 + 5o2 ? 3 co2 + 4h2o + energy

what are the products in this chemical reaction?

3co2 + 4h2o + energy