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