Why does the sky change colors at sunset? 1. because the Sun changes color
2. because the atmosphere refracts light
3. because the atmosphere reflects light
4. because the atmosphere changes color

D-no effect on the rate

There is no reason to think the results are biased or not conducted properly but you should not assume the results are correct just because they were done in a laboratory so the answer would be c. it is likely to be reliable because the results support the conclusion presented.

Ithink iit might be

Iwould but i dont know the answer