No it is not. it's quite simple when you get the hang of it
Earths revolution about both the moon and the sun the moon the sun pull of distant planets
Which language? In Java it would simply be:
int count;
Yes it's important. It's like taking jotting down the ideas you have for a project, you don't want to forget anything, and these things help you keep track of what you want to do.
Answer would be false.