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