Studies reveal that during colder glacial periods, CO2 levels ____ those during warmer interglacial periods
A) were higher than
B) were lower than
C) were about the same as
D) were more variable than
B
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After eating a peanut butter sandwich, Tommy experienced a(n) _______ response as he immediately complained of shortness of breath and had to be rushed to the hospital.
Fill in the blank(s) with the appropriate word(s).
Greenstone belts are composed of sedimentary and volcanic rocks
a. True b. False
Gently sloping bedrock surfaces at the base of mountains that are typically covered by thin layers of debris, bajadas, or alluvial fans are called ____________________
Fill in the blank(s) with correct word
Which of the following is most likely a functional region?
A) an area where new ideas seem to be circulating the fastest B) the area of dominance of a particular church or sect C) the area that a person regards as a hometown D) the area of dominance of a television station E) area where people tend to be fans of a particular professional football team