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?
Answer:
Hot, humid air rises over the equator. As it rises to high altitude it expands because the air pressure decreases (there is less mass of air above it). As air expands due to this decreasing pressure, it also cools. Since cool air is able to hold less water vapor than warm air, condensation occurs.
<span>It can cause parts of a mountainside to break and fall away.
I hope it helps.</span>
Papua New Guinea is located on the island of New Guinea (which is shares with Indonesia). The whole island is located North of Australia, which means that Australia is located South of both the island and the country located on it - so the entire statement is true.