I think D or C is my top answers
Answer:
Q 20: I think this answer would be rarer to denser medium
Q 21: The fluctuation of physical condition in the Earth's atmosphere.
Q 22: I don't see white as an option, but I'm pretty sure that's the correct answer.
Cobalt because it has an atomic mass of 58 and 33 neutrons.
Answer:
organelle are located in da cytoplasm of eukaryotic and prokaryotic cells
Hope this helps!