What are the three major latitude lines on the Earth?

The three major latitude lines on Earth are the Equator, Tropic of Cancer, and Tropic of Capricorn. The Equator is at 0 degrees latitude and divides the Earth into the Northern and Southern Hemispheres. The Tropic of Cancer is located at approximately 23.5 degrees North and marks the furthest point north where the sun can be directly overhead. In contrast, the Tropic of Capricorn is situated at approximately 23.5 degrees South and indicates the furthest point south for direct overhead sunlight.

This understanding of the Earth's major latitude lines is crucial as they play a significant role in determining climate zones, seasonal variations, and human activities across different regions. The other choices include lines such as the Prime Meridian, which is a longitudinal line rather than a latitude line, and the Arctic Circle, which is a significant latitude but not one of the three major lines typically emphasized in basic geographical studies. Thus, the answer correctly identifies the foundational latitude lines that define global geography.