The exosphere layer is mainly composed of extremely low densities of hydrogen, helium, and several heavier molecules including nitrogen, oxygen, and carbon dioxide closer to the exobase. The atoms and molecules are so far apart that they can travel hundreds of kilometers without colliding into one another.
Thus, the exosphere no longer behaves like a gas, and the particles constantly escape into space!!!!
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Your question: What is the cycle of freezing and thawing in the cracks of rocks called?
Your answer: The cycle of freezing and thawing in the cracks of rocks is called ice wedges.
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Explanation:
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Answer:
The primary fear for nations entering free trade is that they will be out-produced by a country ... Comparative advantage stipulates that countries should specialize in a certain class of ... Standards of living improve as a result.
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Answer:
The correct answer is e. It is an example of rapid warmings,like today
Explanation:
PETM was a fast and harmful Climate change on the planet that occurred on the end of the paleocene and the beginning of the Eocene 55.8 million years B.C, in a short lapse of 20 thousand years the earth's temperature increased by 6° C, this increased caused the total extinction of many organisms and adaptation of others in the planet.
Climate records support this theory by studying carbon-13 negative variations in its registry that was used to conclude that about 7000 gigatons of carbon were liberated to the atmosphere at the end paleocene.
The main cause of this climate change was the huge liberation of methane and other gases to the atmosphere and volcanic activity that increased CO2 concentration in the atmosphere. This rapid increase in temperature is scarily similar to what is happening nowadays where climate change is being accelerated by the gas emissions to the atmosphere because of human activity. Climatologist are estimating temperatures increase of 1° to 2° degrees of temperature the next 50 years in 200 years we could suffer the same climate change as PETM.