Zusammenfassung der Ressource
Frage 1
Frage
1) When do we have the first certainty of life?
Antworten
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Archean eon
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Proterozoic eon
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Hadean eon
Frage 2
Frage
When did Proterozoic Eon start up?
Antworten
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25 billion years
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2.5 billion years
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2.5 million years
Frage 3
Frage
What happened with the oxygen first released by cyanobacteria?
Antworten
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It began to be used by living things
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It began to saturate the iron
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It killed the rest of living things
Frage 4
Frage
What type of record do we have to use for knowing when oxygen was accumulated first?
Antworten
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Geological records
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Environmental records
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Fossil records
Frage 5
Frage
What was GOE (great oxygenation event)?
Antworten
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An increasing of atmospheric oxygen 4.8 million years ago
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It becomes an oxygen rich enough environment for eukaryotic cells
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The mayor increasing of oxygen ever in our planet
Frage 6
Frage
Why GOE is also known as the “Oxygen Catastrophe”
Antworten
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It produced the biggest fire ever
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It oxidized all living things
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It killed next to all anaerobic living things (greatest extinction ever)
Frage 7
Frage
Why U.V radiation prevent from life arising on land?
Antworten
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It avoided aquatic living things from come out from water
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It produced important damage on DNA
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It produced sunburn on living things
Frage 8
Frage
What element permits us to live on land nowadays?
Frage 9
Frage
What is the relationship between GOE and U.V radiation that allow us to dwell on land?