The equator is at what degree latitude?
O 10
O 15
O0

The equator is at 0 degrees latitude

Explanation:

You know when you see a picture of the earth with the criss-crossing lines, representing longitude and latitude? Well, the horizontal lines stand for longitude and the vertical ones stand for latitude. Each horizontal line measures one degree north or south of the equator and each vertical line represents east or west. The horizontal line in the very middle of the globe is the equator, and that line is 0 degrees latitude.

that's a long, confusing explanation, but I hope it helps!