Answer: in order for a scientific investigation to be valid A hypothesis must be tested throughout a Scientific investigation that can gather evidence and support it.
Explanation: in any scientific investigation you have to have a testable hypothesis, without your hypothesis it’s not really a scientific investigation.
Hope this helped!
Answer:
The answer is location.
Explanation:
The answer is very logical and need no explaination.
<em>I HOPE THIS WILL HELP YOU!!</em>