Answer: The release of methane from thawed permafrost
Explanation:
With increasing global warming, permafrost in the arctic is melting. The carbon and methyl clathrates present in permafrost escape into the atmosphere to form carbon dioxide and methane, both greenhouse gases.
In the Arctic, molecules of methane are trapped in ice crystals as methyl clathrates. When the temperature increases, these crystals release methyl clathrates which become methane when in contact with the atmosphere.
The cause of the increasing atmospheric 
is due to the the thawing of dead organisms present in the permafrost. As the permafrost melts, these organisms decay and release into the atmosphere.
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<span>The chain of volcanoes that forms at an ocean-ocean convergent plate boundary is referred to as a(n) ___________ arc.
</span><span>The chain of volcanoes that forms at an ocean-ocean convergent plate boundary is referred to as a(n) island arc.
Hope I helped!
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New Zealand has had a three decade anti-nuclear campaign so it's safe to assume they are.
Answer:
D. Both have effective and growing mass transit systems.
Answer:
upper portion (6000ft - 6500 ft)
Explanation:
From the information given:
This activity involves exploring the Zion National Park geology. To achieve this, we need to download the Zion file & open it in Gougle Earth. This is followed by setting the vertical exaggeration to 0.5 & the measurement to feet/miles. The perspective view is also changed to a map view. Now, as viewed in Gougle Earth, the upper portion which is white in nature appears to be steeper than the lower portions. To the Toquerville, the area towards it is remarkably flat with slight undulations.
