Microwaves do not kill organisms directly but kill by
o the heat they generate within them.
generating free radicals.
generating toxins.
o creating thymine dimers.

The answer is c the potato slice shriveled because water moved out of the slice into the salt solution

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on