Answer:
The independent variable is allowed to change and the dependent variable is held constant to see what other conditions
Explanation:
the dependent variable is what is being tested therefore it is what remains constant unlike the independent variable.
Hope this helps. let me know if im wrong.
Answer:
its a. fossil fuels may one day run out. i know cause i got it wrong
Explanation:i got it wrong
Answer:
I am pretty sure it is A or D sorry if this does not help