heres an example of what you may need fam!
Answer: The answer is variable.
Explanation: Scientists may do a start out hypothesis on the info they have. But if something changes in that experiment, it is the Variable.
Hope this helps!
I believe the answer to your question will be all of the above.
Answer: its True
Explanation:
im Not 100% sure if it’s correct but if you do strenuous excersises it will make you more tired and you won’t be able to do them as much.