The branch of soil science that studies soil as a medium for sustaining the growth of higher plants is known as
A) pedology. B) geology. C) edaphology. D) geomorphology.
Question 2
A yazoo tributary stream cannot join with the main river in an area because
A) the yazoo flows in a different valley.
B) a man-made flow control structure keeps the rivers separate.
C) a small structural ridge separates the rivers.
D) a natural levee on the main river prevents its joining.