What is not released after riding a bike?
carbon monoxide harmful substances fossil fuels heat energy one celled organisms hard outer covering layers of fat Pituitary gland
A B C D E F G H
Carbon monoxide is, of course, an air pollutant.
riding a bike does not release carbon monoxide
What is not released after riding a bike? (A) carbon monoxide (B) harmful substances (C) fossil fuels (D) heat energy (E) one celled organisms (F) hard outer covering (G) layers of fat (H) Pituitary gland