Answer:
3. the opposite of the direction of motion
Explanation:
this is to slow down the movement of the object sliding on a surface
to regulate what comes in and leaves the cell
Answer:
Sorry cant find the answer but i hope you got it right and if you didn't you'll still do great. :)
Explanation:
It’s true because when 2 objects touch one is higher temperature and the other is lower temperature and the higher temperature transfer heat to the other temperature