Hi,
9. What is the amount of fluoride concentration in water that's considered safe for the prevention of dental decay?
D. 1 part per million
I think the answer would be A. When under stress, it can enhance a focus towards specific thing. Let’s take school for example- if you’re stressed about not having a good grade in a certain class, you might be more motivated and out focus into that’s subject. With that logic, option A would be fitting.
<span>Stress disrupts the body's systems. It inhibits the body's ability to resist illness. Without a return to homeostasis our body stays in an "alarmed" condition and becomes exhausted and more likely to cave in to diseases including heart disease, cancer, chronic headaches, ulcers, and depression among others.</span>
Well some people think that the universe is faulty, empty and unstable, just like soap bubbles.
Hope this helps!
Answer:
To give a demonstration of (something, such as a product or procedure), to show how (something) works, is prepared, or is done.
Explanation: