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