C. humus
the answer is humus cause it really has nothing to do with soil.
the answer is B.extinction can be related to a failure to adapt to changes in the environment.
The correct answer is hydronephrosis. Distention means being enlarged or swollen due to internal pressure. In this case, the internal pressure would be urine collecting in the kidney. This occurs when the urine is unable to drain from the kidney to the bladder due to an obstruction. Contrary to common belief, hydronephrosis is not a disease itself, but is instead is the result of a disease.
Answer:
Softer? I hope this helps :)
Explanation: