Well, there are a few types of planetary movement, a planet moves in an elliptical and orbital pattern that can be observed by keeping watch on how many times a year you see it in the sky; with this information you will be able to predict its movement patterns by the frequency of orbital movement as well as the interval between each appearance.
Oh and BTW next time, try posting a SCIENCE question in the Physics category?
Neap Tides.Just answered a same exact question before :P
The type of roch that makes up the andes mountains in south america are called igneous rocks
the answer is A the rapid snow melting in regions up stream cause major flooding downstream.