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