The normal range for air pressure at sea level is
A) 500 to 1000 mb. B) 980-1050 mb. C) 1060-2010 mb. D) 100 to 650 mb.
B
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What created Earth's moon?
a. The initial big bang expansion event b. The formation of a new star c. Ejection of rocky mantle material from Earth after a collision with a smaller planet d. The collision of two older moons e. Ejection of rocky mantle material following an explosive volcanic event on Earth
The population size of each species that a community can support indefinitely under a stable set of environmental conditions is its carrying capacity
Indicate whether the statement is true or false
Volcanic venting of substances including water vapor is called ____
A) ?outgassing B) ?fissure C) ?fusion D) ?condensation
Downwelling ________
A) of ocean water results in areas of high primary productivity at the ocean surface B) is the flow of cold water down toward the ocean floor C) occurs in areas where currents diverge, or flow away from each other D) occurs in areas where surface currents converge, or flow toward each other E) occurs where winds blow at right angles toward the coastline