Assume that Layer C is a lava flow that has been radiometrically dated to 97 million years ago. What is the age of Layer Z?
A) Younger than 97 million years old
B) Older than 97 million years old
C) Younger than 45 million years old
D) Exactly 97 million years old
Answer: B
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Geographers typically predict the market share of a new store through the so-called ________
A) analog method B) central place theory method C) threshold ruler timer D) range analysis method E) rank-size rule
The relationship between insolation and air temperature through the course of day indicates that
A) air temperature reaches a maximum afternoon, whereas insolation reaches a maximum at noon. B) air temperature reaches a minimum at midnight when no insolation is received. C) air temperature maximum and minimums are not related to insolation. D) the point of highest insolation corresponds to the warmest time of day. E) air temperature reaches a maximum at noon when insolation also reaches a maximum.
In glycerophospholipids where is the phosphate group attached to glycerol?
A) at the middle carbon only B) at a terminal carbon only C) at either the middle or a terminal carbon D) at both the middle and a terminal carbon
The visible light spectrum is bounded by these two types of radiation:
A) x-ray and thermal infrared. B) x-ray and radio wave. C) microwave and gamma ray. D) ultraviolet and near infrared.