Which option correctly describes how Earth’s temperature has changed during its history?
There is not enough data on Earth’s temperature before life appeared.
There is not enough data on Earth’s temperature before life appeared.
Earth started out very cold. Over time, it warmed up.
Earth started out very cold. Over time, it warmed up.
Earth started out with moderate temperatures. The temperatures fluctuated between high and low due to certain events.
Earth started out with moderate temperatures. The temperatures fluctuated between high and low due to certain events.
Earth was initially very hot. It gradually cooled down.