I am not sure but I am guessing carbon and nitrogen :)
Answer: Option D.
Rate of oxygen consumption.
Explanation:
Volume of oxygen used or Vo2 Max is the maximum ability of a person to consume oxygen and the ability of the heart, lungs and blood to transport the oxygen to other tissues and utilize it to produce ATP or energy during intense exercise.
Answer:
C
Explanation:
Due to technology being ubiquitous, more and more gadgets that are produced are consuming more and more energy. This means that there is a need for cheap energy. Currently, cheaper sources of energy are non-renewable such as coal and crude oil. These pollute the environment causing climate change.