For 17 number 4. For 18 number 1. For 20 number 4. Hope this helped.
C... if they’re testing people there must be some progress.
Answer:
Yes 2 objects can push or pull each other
Explanation:
Example a magnet can by using its magnetic fields
Answer:
The Correct answer is A
Explanation:
Just read into your sentences and as you can see, their not really written in a way to be informed