Yes they can because the catalyst does not take part in the chemical reaction and remains unchanged after the reaction has ended. Biological catalysts are known to be recycled by the bodies in which they work.
OROGENESIS:-
Orogenesis is a - General Term that is used to describe the processes in which mountains and mountain belts are beimg produced.
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Fermantion and cellular respiration in that they both begin with series of reaction known as glycosis, which break glucose molecules into smaller pyruvate molecules
The correct choice is d, the burning if fossil fuels because fossil fuels do a lot of harm to the world.
"Metabolic Pathway" is what I believe the answer is.