Available choices:
+Scent;
+Temperature;
+Bugs;
+rainfall;
+fossil fuels;
+Water;
+energy;
+Nutrients;
Given those answer options, answer the question: Fact 1: Decomposition increases the amount of nutrients in the soil. Fact 2: Organic matter is the plant and animal residue in the soil at various stages of decomposition. Given the two facts above, what does plant and animal residue increase in soil?
A:
Nutrients