Usually the controlled experiment is the one that is not tested so they look at the experimental experiment to find the differences. Sorry if this doesn't answer your question.
Answer:
I think its B
Explanation:
I don't know how to explain it bc I'm not really sure
Diffusion is when molecules go from high concentration to low concentration, and it's faster in summer<span />
The partial pressure of argon is:
1.63-0.71= 0.92 atm
The phylogeny of an organism is its evolutionary history.
