I believe that it’s unconscious since it’s not something you require to be aware of so therefor the answer should be D.
The items that can contribute to heart disease is C. Nitrogen oxides and carbon monoxide. These are the chemicals that contribute to pollution. Carbon monoxide is the product from a combustion that can affect our respiratory system whenever we inhale this gaseous chemical. And nitrogen oxides can affect and penetrate areas of the body when inhaled in which our respiratory organs may be affected by diseases because of this chemical.
A. Tornado
A rotating, funnel-sgaped column of wind moving at speeds between 110 and 200 miles per hour
B. Hurricane
An intense storm that begins over tropical waters and includes heavy rain and strong winds.
Your favorite sport is soccer
