Answer:
C
Explanation:
It prevents other variables such as independent variables and extraneous variables from affecting the validity of results. It also makes it easier to compare results when variables are changed.
Hope this helps :)
Answer: C.. learn to focus on the important aspects of your life
Explanation:
Got it right on edg
Because the sun bleaches and destroys the melanin in your hair, and while it also destroys the melanin in your skin, your skin cells make more, causing your skin to get darker.
For me it is 3 in the morning
