The second law of thermodynamics states that in every energy exchange, some energy becomes unavailable for further use. And yet energy-expensive life continues. How can we reconcile these two facts?
A) The slow mixing of water in the oceans allows usable energy to accumulate.
B) Energy does not follow a biogeochemical cycle.
C) Earth is an open system, and is continually receiving new matter.
D) Earth is an open system, and is continually receiving an energy supply.
E) The lithospheric plates convert heat into useable energy.

Question

Quizplus · Accepted Answer

The second law of thermodynamics applies to closed systems, while Earth is an open system in terms of energy, as it continually receives energy from the sun. This energy input allows for energy-expensive life to continue despite the law.

The Second Law of Thermodynamics States That in Every Energy