The biggest design innovation that SpaceX has pioneered is, of course, the fact that Dragon 2 is partially reusable, potentially resulting in a significant cost reduction. The first stage of the spacecraft is capable of re-entering the atmosphere and landing vertically after separating from the second stage.
One of the main things that the debate between Madison and Jefferson tells us about the importance of compromise is that it is very rare and sometimes impossible for two people to see "eye to eye" on issues in politics--making compromise absolutely essential if you want to get things done :)
maybe a little less than a paragraph, but i hope this helps
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.
Two that I know of are a sextant, and maybe an astrolabe
Answer:
The correct answer is -
1. group of many islands - archipelago
2. waterway dug across the land - canal
3. a large body of salt water - sea
4. land that connects two larger pieces of land- isthmus
5. land totally surrounded by water - island
Explanation:
An archipelago is a group of many islands or scattered chain of islands in the sea. Malay Archipelago is the largest archipelago with 25000 island group in southeast Asia.
The canal is the waterway dug across the land made by humans artificially for the water channels or waterways.
Sea is a large water body that consists of saline water and organism lives in these.
A narrow strip of land that connects two larger lands that are separated by water or similar things called the isthmus.
Island a smaller land surrounded by the water body.
