These data were obtained by a titration experiment. Please answer the questions below step by step.

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

What can be found in the ionosphere

In the following table, all the columns for the element calcium are filled out correctly. element electron structure of atom electron structure of ion net ionic charge calcium 1s22s22p63s23p64s2 1s32s22p63s23p64s1 +1 true false