1) Who researches space? a) astronomer and archaeologist b) astronomer and astronaut c) astronaut and zoologist 2) What stands at the center of the solar system? a) Sun b) Earth c) Moon 3) The famous Polish astronomer is: a) Mikołaj Rej b) Wojciech Koperek c) Mikołaj Kopernik 4) The sun is there a) comet. b) planet. c) star. 5) How many planets does the solar system consist of? a) 9 b) 8 c) 10 6) The third planet of the solar system is: a) Earth b) Venus c) Mars 7) The Red Planet is: a) Saturn. b) Jupiter. c) Mars.

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