Which of These Statements Is True

Multiple Choice

Which of these statements is true?

A) Young soils are characterized by well-developed horizons.
B) Soils become mature when they reach ten thousand years old. ​
C) The older the soil, the more parent material influences soil characteristics. ​
D) Soils formed from volcanic parent material are often fertile. ​
E) Soils form at the same rate, regardless of location. ​