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exosphere
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   Also found in: Dictionary/thesaurus, Medical, Financial, Encyclopedia, Wikipedia 0.01 sec.

exosphere

Uppermost layer of the atmosphere. It is an ill-defined zone above the thermosphere, beginning at about 700 km/435 mi and fading off into the vacuum of space. The gases are extremely thin, with hydrogen as the main constituent.



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The aim is to gather evidence of the critical level to which stocks have fallen, and to spur the Scottish Parliament into action.
Our work helps define those critical levels for marine animals, and will enable the emerging risk to be quantified and mapped," he said.
20080258357 describes heating a sheet of amorphous PLA at 80 to 155 C to develop a critical level of crystallinity, and then forming the sheet on a mold heated to less than the Tg or the crystallization temperature of PLA.
 
 
 
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