The Troposphere is the first layer above the surface and contains half of the earths atmosphere
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A. would be the correct answer
What are the choices....I would say the sea because I really don't understand what your trying to ask
Rapid defibrillation is important because it contributes greatly to the survival of sudden cardiac arrest patients by eliminating abnormal hearth rhythm. Research has shown that the only proven, effective treatment for sudden heart attack is prompt defibrillation which is applied within the first few minutes of attack.
