From which blood vessels are materials exchanged between blood and body tissues?
A) arteries
B) arterioles
C) capillaries
D) veins
C
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A country's ecological footprint is larger than its biological capacity to replenish its renewable resources and absorb the resulting waste and pollution. What can be said about this country?
A. It has an ecological deficit. B. It must not have any natural capital. C. It is a sustainable society. D. It is most likely a developing country. E. It can be described as preservationist.
On weather maps cold fronts are drawn
a. in blue, with arrowheads showing the front’s general direction of movement. b. in red, with arrowheads showing the front’s general direction of movement. c. in blue, with arrowheads pointing away from the front’s general direction of movement. d. in black, with arrowheads showing the front’s general direction of movement. e. in red, with arrowheads pointing away from the front’s general direction of movement.
About what percent of the wind's energy is transferred to the ocean surface?
A) Two B) Five C) Ten D) Twenty E) Fifty
The Ogallala Aquifer is located
A. beneath an area extending from South Dakota to the panhandle of Texas. B. west of the San Andreas Fault in California. C. along the Ogallala River in Nebraska.