Answer:
By breathing cleaner air you can reduce the risk of stroke, heart disease, lung cancer and respiratory diseases such as asthma.
Explanation:
(I hope it's helpful)
When humans and other animals lack sufficient oxygen, they'll create ATP through a form of anaerobic respiration that produces lactic acid as a byproduct. ... Yes 'Anaerobic' means 'without oxygen. Cells will produce ATP through lactic acid fermentation only under when they lack sufficient oxygen.
Temperature is considered an biotic limiting factor. The correct answer is A.