1) Does air have mass? a) Yes b) No c) We have no idea 2) Which layer of the atmosphere has weather? a) exosphere b) thermosphere c) mesosphere d) stratosphere e) troposphere 3) Which layer of the atmosphere is the one that fades into space? a) exosphere b) thermosphere c) mesosphere d) stratosphere e) troposphere 4) Which layer of the atmosphere is the one the closest to the Earth? a) exosphere b) thermosphere c) mesosphere d) stratosphere e) troposphere 5) Which is the 2nd layer of the atmosphere? a) exosphere b) thermosphere c) mesosphere d) stratosphere e) troposphere 6) Which is the 3rd/middle layer of the atmosphere? a) exosphere b) thermosphere c) mesosphere d) stratosphere e) troposphere 7) Which is the 4th layer of the atmosphere? a) exosphere b) thermosphere c) mesosphere d) stratosphere e) troposphere 8) Which is the 5th layer of the atmosphere? a) exosphere b) thermosphere c) mesosphere d) stratosphere e) troposphere 9) What helps protect us from the sun's dangerous UV rays? a) weather b) greenhouse effect c) greenhouse gasses d) ozone e) solar winds 10) What helps the Earth maintain a manageable temperature? a) weather b) greenhouse effect c) magnetosphere d) ozone e) solar winds 11) What helps the Earth from solar winds? a) weather b) greenhouse effect c) magnetosphere d) ozone e) solar winds 12) What is the correct order of rocky planets from closest to the sun to furthest? a) Earth, Mars, Venus, Mercury b) Mars, Earth, Mercury, Venus c) Venus, Mercury, Earth, Mars d) Venus, Mars, Mercury, Earth e) Mercury, Venus, Earth, Mars f) Mercury, Earth, Venus, Mars 13) What is the correct order of layers of the atmosphere from closest to the Earth to furthest? a) thermo, meso, tropo, strato, exo b) exo, thermo, meso, strato, tropo c) tropo, strato, meso, thermo, exo d) meso, exo, tropo, strato, thermo e) tropo, thermo, meso, exo, strato f) strato, tropo, exo, thermo, meso 14) In our original atmosphere, which gases floated away? a) oxygen b) carbon dioxide c) hydrogen and helium d) sodium e) nitrogen and helium f) nitrogen and argon 15) What released gas that eventually produced water vapor? a) the sun b) ice c) rocks d) plants e) volcanoes f) helium 16) When the Earth along with the water vapor what formed? a) volcanoes b) bodies of water c) helium d) rocks 17) When bodies of water were formed what else was formed at FIRST on Earth? a) rocks b) humans c) plants d) complex animals e) the moon 18) The sun's harmful radiation turn oxygen into _________ to protect Earth from the radiation. a) volcanoes b) green house gasses c) greenhouse effect d) ozone e) shooting stars 19) Once plants were able to grow what did they release? a) carbon dioxide b) oxygen c) helium d) nitrogen 20) Plants are responsible for what? a) all of the answers b) humans c) plants d) ozone e) greenhouse effect f) our atmosphere

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