Which of the following describes the Koppen-Geiger climate Cfa?

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

At which location in earth’s interior does the top density continue to increase as thickness decreases?

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?