LET Social Science Practice Exam

The study of the Moon, stars, and space is astronomy. This field focuses on celestial objects and the universe, using telescopes, spacecraft, and physics to understand how these objects behave, how they form, and how the cosmos works. Oceanography, by contrast, examines oceans and their processes; cartography is about making maps of the Earth’s surface; and a term like Khartes isn’t a standard field associated with space science. So astronomy is the best fit because it specifically deals with space and everything beyond the Earth's atmosphere.