Question:
Use evidence from the fact that decomposition increases the amount of nutrients in the soil to answer the following question. "Soil quality is improved when"

Answer:
organisms pass and rot away

Question:
Use evidence from the fact that the number of rings in a tree trunk can be used to estimate the age of the tree to answer the following question. "the number of rings in a tree trunk can be used to estimate what?"

Answer:
oldness

Question:
Use evidence from the fact that humans changing an environment sometimes causes that environment to be destroyed to answer the following question. "Which would likely displace a family of chipmunks?"

Answer:
mall construction