Answer:
To give a demonstration of (something, such as a product or procedure), to show how (something) works, is prepared, or is done.
Explanation:
Answer:
i think it's D
Explanation:
cuz it is good to set boundaries.
Is the problem showing anything else
I think the answer is convection
ANSWER - The expiration date doesn’t really indicate in which the medicine is unsafe to use. 90 percent of 100 over the counter drugs that were tested could be used up to 15 years until they became ineffective.