A) 1 hour B) 30 minutes C) 1 day D) 8 minutes and 20 seconds
A) Chemical reaction B) Nuclear fission C) Photosynthesis D) Nuclear fusion
A) Venus B) Mercury C) Mars D) Earth
A) Greenhouse effect B) Solar eclipse C) Light pollution D) Global warming
A) Chromosphere B) Corona C) Sunspots D) Photosphere
A) Vikings B) Ancient Greeks C) Mayans D) Ancient Egyptians
A) Hydrogen and Helium B) Nitrogen and Sulfur C) Oxygen and Carbon D) Iron and Nickel
A) Sun's meridian B) Solar zenith C) Celestial equator D) Solar axis
A) UFO spots B) Sunspots C) Solar eclipses D) Satellite spots |