Which of the following statements best explains how the decomposition of plant and animal matter helps to form rich soils?
A: Decomposition adds nutrients to soil.

Which organ is part of the respiratory system?
A: lungs

Which of these is a renewable resource found in Nevada?
A: geothermal energy

A pond is near river but not connected to it. What would most likely allow fish to move from the pond to the river?
A:
a flood