question:
In an accurate diagram of the solar system, which object would be shown closest to Earth?

answer:
the Moon

question:
Many scientists think that burning fossil fuels has increased the amount of carbon dioxide in the atmosphere. What effect would the increase of carbon dioxide most likely have on the planet?

answer:
a warmer climate

question:
Which form of energy are x rays and ultraviolet light?

answer:
electromagnetic

question:
Which statement describes the location of our Sun in the universe?

answer:
Our Sun is the center of a solar system in the Milky Way galaxy.