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