Answer:
Arteries are blood vessels that carry oxygen-rich blood to your heart and other parts of your body. Plaque is made up of fat, cholesterol, calcium. Over time, plaque hardens and narrows your arteries causing cardiovascular diseases like stroke and heart attack.
Assertive is choice D
Aggressive would be all the others
A toxic biological substance or disease-causing organism that is hazardous to the health of people is a biohazard.
15. C
16.B
17.H
18. A
19.E
20.D
21.G
22.F
I think this is correct sorry if any are wrong