Which of the following statements about the solar system's formation is true?

1. the temperature was very cold
2. gravity pulled together a cloud of gas and dust
3. objects formed from the same materials
4. the planets formed at the same distance from the sun

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.