On early Earth, more than 4 billion years ago, environmental conditions were very different from those today because On early Earth, more than 4 billion years ago, environmental conditions were very different from those today because only early Earth was intensely bombarded by large rocks and ice from space. less ultraviolet radiation penetrated early Earth's atmosphere. early Earth's atmosphere had significant quantities of ozone. only early Earth had an oxidizing atmosphere.
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Geography, 22.06.2019 01:30
7. according to the theory of isostasy, which statement must be true? a. the asthenosphere is denser than the lithosphere. b. the asthenosphere has the same density as the lithosphere. c. the lithosphere has the same density as the core. d. the lithosphere is denser than the asthenosphere.
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Geography, 22.06.2019 22:30
The map above shows where people live in the united states. areas that are darker blue are areas where people live close together. areas that are lighter colors are places where people live farther apart. as a geographer, if you were to study where people live and why they choose to live in these places, which of the six essential elements of geography would you be using?
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Geography, 23.06.2019 13:30
The process by which liquid water changes into water vapour is called what ?
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Geography, 24.06.2019 04:00
Which arrow is closest to laguna madra bay? a. 1 b. 2 c. 3 d. 4
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On early Earth, more than 4 billion years ago, environmental conditions were very different from tho...
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