1) Which is the hottest planet of the solar system? a) Mercury b) Sun c) Venus 2) Which are the larger outer planets?  a) Mercury, Venus, Earth and Mars b) Jupiter, Saturn, Uranus and Neptune c) Mars, Saturn, Uranus and Neptune 3) Which are the inner terrestrial planets? a) Mercury, Venus, Earth and Mars b) Jupiter, Saturn, Uranus and Neptune c) Mars, Saturn, Uranus and Earth 4) Which are Saturn's neighbouring planets? a) Jupiter and Mars b) Jupiter and Neptune c) Jupiter and Uranus 5) Which is the only planet that has oxygen? a) Saturn b) Earth c) Mars 6) Wich is the only star in the solar system? a) The Sun b) Sirius c) Venus 7) Mercury is as big as............... a) Earth b) Mars c) Earth's Moon

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