I would say A. Because c and d r very dangerous if u think about it. And b is right in some situations. But if u do a then people can see whts going on if something happened because of the light. and it is safe. If wrong let me know. :D
Answer:
The answer is D
Explanation:
The reason being, it would make the teen more aware of what to look out for on the internet
I believe 7% is almost correct because most people can try to quit smoking a year but hardly ever succeed
The muscular system is the organ system that is composed of tissue and can contract and relax.
Answer:
true
Explanation:
it is true because it is a part of healthy physical environment