A) Fossil Fuels B) The Sun C) Wind D) The Moon
A) Nuclear Fission B) Chemical Reaction C) Gravity D) Nuclear Fusion
A) Chromosphere B) Convection Zone C) Corona D) Photosphere
A) Comets B) Meteoroids C) Solar Flares D) Asteroids
A) Mars B) Mercury C) Jupiter D) Venus
A) Chromosphere B) Convective Zone C) Photosphere D) Corona
A) About 2 hours B) About 8 minutes C) About 1 day D) About 1 week
A) Solar Cycle B) Lunar Cycle C) Seasonal Cycle D) Decadal Cycle
A) Iron and Nickel B) Hydrogen and Helium C) Nitrogen and Sulfur D) Oxygen and Carbon |