<span>CH4 + 2O2 --> CO2 + 2H2O i think
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Solution:
Opteon is the specific refrigerant has the highest global warming potential (gwp) of all the common refrigerants.
The Opteon™ family of low global warming potential (GWP) refrigerants were specifically developed to reduce environmental impact without sacrificing performance.
From automotive air conditioning to commercial refrigeration, OEMs and end users trust the Opteon™ portfolio to meet their needs:
The tropic level is each level of hierarchy in an ecosystem and the primary source of energy left over after an animal is consumed from the lowest level up. a food web is a system of inner locking interdependent food chains.
Hope it helped
Answer:
volcanic eruptions, earthquakes, and tsunamis
Explanation: