The light radiated from the Sun's surface reaches Earth in about 8 minutes, but the energy of that light was released by fusion in the solar core about .
A)a few hundred thousand years ago
B)three days ago
C)one thousand years ago
D)one hundred years ago

Question

Quizplus · Accepted Answer

The energy released by fusion in the solar core takes a long time to travel through the dense material in the Sun's interior. It is estimated that it takes about 100,000-200,000 years for the energy to reach the surface of the Sun, where it is then radiated out into space as light. So, option A is the best choice as it is closest to this estimate. The other choices are considerably less accurate.

The Light Radiated from the Sun's Surface Reaches Earth in About