It would be "Researchers found environmental safe replacements for CFC's"
The vacuum of outer space has essentially zero air. Because sound is just vibrating air, space has no air to vibrate and therefore no sound. If you are sitting in a space ship and another space ship explodes, you would hear nothing. So, in order for sound to travel, there has to be something with molecules for it to travel through. On Earth, sound travels to your ears by vibrating air molecules. In deep space, the large empty areas between stars and planets, there are no molecules to vibrate. There is no sound there.
Answer:
Explanation:
Use the following equation:
and solve for F:
and filling in:
F = 4.0 × 
N
Answer:
B and D (Chicken and Turkey)
Explanation:
Looking at the table, we can see that chicken and turkey have an identical data set.
Good luck! Hope this helped!
