Author Question: Artificial drainage and irrigation ____. a. control wetlands b. need to be employed on all ... (Read 91 times)

charchew · **on:** Jul 21, 2018

Artificial drainage and irrigation ____.

a. control wetlands
b. need to be employed on all agricultural fields
c. make otherwise difficult soil productive
d. are tools used only by growers

Question 2

All of the following describe wetlands EXCEPT that ____.

a. there are federal and state programs to protect them
b. they are self-contained and have no effect on groundwater
c. estimated current average loss is almost 33,000 thousand acres annually
d. they are areas flooded or saturated by surface or groundwater often enough and long
enough during growing season as to support vegetation adapted for life in saturated soils