I) what is shown in the diagram????
Ii) What happens when 'A' comes at the place of 'B' and 'B' comes at the place of 'A'??
iii) when does the event shown in the diagram occur: on new moon or full moon

I what is shown in the diagramIi What happens when A comes at the place of B and B comes at the place of A iii when does the event shown in the diagram occur on class=