Why is it so hot around the equator?

The Sun's rays hit the equator for short periods of time.
The Sun's rays hit the equator more directly and for longer periods of time.
The Sun's rays miss the equator.
Many people vacation near the equator.

The second option is correct. The Sun's rays hit the equator more directly and for longer periods of time, which causes it to be hotter around the equator. This is because the Earth's tilt causes the equator to receive more direct sunlight, resulting in higher temperatures.