Author Question: The four major NRCS soil orders which are classified on the basis of soil forming factors unrelated ... (Read 134 times)

MGLQZ · **on:** Aug 7, 2018

The four major NRCS soil orders which are classified on the basis of soil forming factors unrelated to climate, such as slope, drainage, or maturity are:
a. Oxisols, Mollisols, Ultisols, and Vertisols.
b. Entisols, Histosols, Inceptisols, and Andisols.
c. Alfisols, Spodosols, Oxisols, and Histosols.
d. Vertisols, Ultisols, Spodosols, and Mollisols.

Question 2

If an increase in a deer population depletes the animals' food supplies, leading to a decrease in population back toward the original number, this would be an example of a positive feedback.
a. True
b. False
Indicate whether the statement is true or false