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From the oceans

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Q: Scientists think the first water vapor on Earth came from?
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About how many years ago do scientists suggest that earth cooled enough for water vapor to condense?

THEY THINK about 3.9 billion years ago (: 4.4 billion years ago(:


What is the first layer of earth?

is water vapor


What increases as water vapor increases?

Scientists studying the Earth's climate changes have found that increased temperatures lead to increases in water vapor in the atmosphere, which adds to global warming. This means that increases in temperature and water vapor feed each other.


What do you think happens when earth atmosphere becomes sutured with water vapor?

Clouds, fog.


Water vapor that forms droplets and falls to the earth?

I think you can figure this one out.


What must happen first during the water cycle?

There is no first in a cycle but, most are comfortable thinking ice melts to water, water evaporates to vapor, vapor condenses and fall to earth as rain to snow.


What was the first earth's atmosphere made up of?

Primarily hydrogen, with probably water vapor, methane and ammonia.


How can water vapor in the earth return to earth?

H


How did condensed water vapor form the oceans?

It condensed water vapor to form the oceans by the Earth's vapor into the water.


When water vapor condenses it falls back to earth as?

Condensed water vapor from the sky typically falls back to Earth as rain.


What is the water vapor concentration at the earth's surface?

The water vapor concentration constantly fluctuates.


What layer of the earth's atmosphere contains no water vapor?

The stratosphere contains almost no water vapor.