Matter And Energy Flow Practice Test

A model of the carbon cycle in a forest is described below.

Matter (carbon) movement arrows: Atmosphere CO$_2$ → Plants (photosynthesis); Plants → Animals (eating); Plants/Animals → Atmosphere CO$_2$ (respiration); Dead organisms → Soil carbon (decomposition); Soil carbon → Atmosphere CO$_2$.

Energy flow arrows: Sun → Plants.

Which statement is supported by the model?

A simplified water-cycle model is shown:

Matter (water) movement arrows: Ocean → (evaporation) → Atmosphere → (condensation/precipitation) → Land → (runoff/groundwater) → Ocean.

Energy flow arrows: Sun → Ocean surface and Sun → Land surface.

Which explanation is supported by this model about how energy flow and matter cycling work together?