It would be B. micropipette because you can measure more precisely with this form of lab apparatus.
You can find the answer in the living environment regent by searching it on google, also if you want I have the answer!
The answer is c. Phosphorus is not abundant in the atmosphere, it comes mostly from the land and ocean.Phosphorus cycle through the lithosphere, hydrosphere, and biosphere, but not the atmosphere. The reason for this is that phosphorus cannot be found in the gas state, unlike the carbon.
