Hi! I think that it's a good idea to try and reduce the chances of errors happening in an experiment because..
A. It saves time and/or clean up afterwards.
B. It might bring you closer to an answer for the experiment.
*And just a question, what is this for? I'm interested ^_^*
Answer:
1) Ocean currents can carry warm water, which can raise the temperature of the air and land.
2) Ocean currents can carry cold water, which can cool the air and land.
I believe it's the temperature in the core
Ph buffers the bold so clots and thing that damage your blood flow would affect you blood ph damanging anything but mostly the heart and organs