PLEASE HELP!! i need this for an exam! :(
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Geography, 23.06.2019 15:10
During which era in earth's history were the first insects? mesozoic precambrian cenozoic paleozoic
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Geography, 23.06.2019 17:30
Sink holes may eventually for to join a. wide valleys b. zone of aeration c. dripstones d. aquifer
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Geography, 24.06.2019 01:00
Which phrases describe oxygen's roles in earth’s atmosphere? check all that apply. allows fuels to burn forms clouds that produce rain is the gas that animals breathe is used by plants to produce food forms ozone that absorbs the sun's harmful rays
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Geography, 24.06.2019 06:00
Tides are caused by a differences in the gravitational force of the sun at different points on earth. differences in the gravitational force of the moon at different points on earth differences in earth’s gravitational field strength at different points on earth’s surfac fluctuations in the gravitational attraction between earth and the moon.
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