Cosmology is the study of the universe, including its origin, nature, and evolution.
Geology is the study of rocks found on earth and the changes it underwent as a result to the changes that occurred on earth.
Meteorology is the study of the atmosphere. It is an interdisciplinary scientific study.
<span>Well, I'm pretty sure there are four. The northern and southern hemispheres, and then the eastern and western hemispheres.</span>
4) Polaris
Stars emit light with energy generated by nuclear fusion, think of the Sun as an example. Polaris is a star, it's the brightest star in the little bear constellation, and therefore the correct answer.