Answer:
3.
Explanation:
doing 7.1.2 in Ap ex rn
UAC GGU CAU ACU
oxygen from reaching your tissues and organs.
Carbon Monoxide is very dangerous to us and many other animals. It is a flamable gas that is bad for our blood cells. When we breath it in and it gets put into out blood, it cannot be used as a substitution for air, and you will suffocate.
...I think.
