The Dakota Sandstone is threatened primarily by:
a. pollution.
b. subsidence.
c. saltwater intrusion.
d. extensive use.
e. lack of recharge.
D
You might also like to view...
____________________ is a process by which chemicals entering the food chain in lower organisms become concentrated as they move to animals at higher trophic levels
Fill in the blanks with correct word
The total fertility rate is defined as the average number of children a woman in a given society would have over her lifetime
Indicate whether the statement is true or false.
The Sonoma orogeny was the result of suturing of a volcanic island arc system onto the west
coast of North America. Indicate whether the statement is true or false.
The circulation of water at great depths is driven by: a. temperature only
b. density. c. surface winds. d. salinity only.