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How did the oceans of early Earth differ from the oceans of modern Earth?
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What is early earth conditions?
there were meteorites, a lot of space debris and lightning and liquid water eventually made the oceans.
How do Cro-Magnons and modern humans differ?
Cro-Magnon were early modern humans. Other than living in the stone age, they were just like us.
How did those early states differ from modern nations-states?
chocolate
What was the compsition of early atmosphere when the Earth first formed?
Water vapour (produced rain-rivers, lakes, oceans) carbon dioxide nitrogen
What happened to the water vapor in the atmosphere when the early Earth cooled?
As the earth cooled, water vapour in the atmosphere condensed to a liquid (water) and fell to the earth as rain the make the oceans.
What evidence indicates that oceans formed early in Earth's geologic history?
Radioactive studies and lava flows offer evidence that there has been abundant water throughout Earth's geologic history.
The early oceans became salty when?
dissolved solids were carried from land into oceans
Earth's early atmosphere was formed by gases released by oceans plants cornet impacts or volcanic eruptions?
Volcanic eruptions, they produced a lot of carbon dioxide which made up the early atmosphere.
What element upon which most modern organism depend was missing from earth's early atmosphere?
Oxygen
What element upon which most modern organisms depend was missing from earth's early atmosphere?
oxygen
What hypotheses have scientists proposed to explain the Earth's early atmosphere and the way the oceans formed?
i mean i dont realy know just Google the question
How did early sailors navigated the oceans?
j
