No links and i know this isn't actually biology 3.
Which of the following characteristics of the Sun help life to exist on Earth?

1. The Sun’s gravity keeps the Earth in a consistent orbit.
2. The Sun’s radiation provides heat to the Earth.
3. The Sun’s light shines on half of the Earth at a time.
4. The Sun’s solar flares and storms shower the Earth with additional radiation.
5. The Sun’s spots cause cooler areas on the Sun’s surface.
6. The Sun’s position in relation to the Earth and Moon causes eclipses.

Characteristics 1, 2, and 3
Characteristics 2 and 3
Characteristics 2, 3, 4, and 5
Characteristics 3, 5, and 6