At the center of a hurricane is a relatively calm region called the ________.
A) eye
B) eye wall
C) apex
D) surge
Ans: A) eye
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The structural layer that the P- and S-wave low-velocity zone in the upper part of the mantle closely
corresponds to is the ____________________. Fill in the blank(s) with the appropriate word(s).
The average size of U.S. farms in 2000 was approximately ________ acres
A) 4,000 B) 100 C) 7,000 D) 1,000 E) 550
At constant pressure the temperature of a 4.00 L sample of gas is decreased from 400. K to 300. K. What is the new volume of the gas sample?
A) 0.188 L B) 0.333 L C) 3.00 L D) 5.33 L
The EROI (energy returned on investment) ratio is calculated as
a. Energy invested/Energy returned. b. Energy invested × Energy returned. c. Energy returned/Energy invested. d. Energy returned × Energy invested.