Answer:
fdghgjkk , mmn xgwvdkqgeb e keqwkclhehjq qbqlq.bq;q
Explanation:
That's false. Mechanical waves (like sound and ocean waves) do
need a medium to travel in, but electromagnetic waves (like radio
and light) don't.
Newton's law of universal gravitation states that a particle attracts every other particle in the universe using a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers
C. Negative force. The dog isn't going to learn that way.
