What creates a thermocline? A. a difference in the amount of phytoplankton in the ocean
B. a change in the phytoplankton population
C. a difference in water temperature
D. a series of strong ocean storms

Can someone me with these questions plz.

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.

Which statement accurately represents the arrangement of electrons in bohr’s atomic model?