Which of the following describes stratospheric ozone?
A. It reflects all ultraviolet radiation back into space.
B. It contributes to the increase of temperature with height in the stratosphere.
C. It does not affect Earth's radiation budget.
D. It reaches its highest concentrations over Antarctica in October.
Answer: B
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Which of the following countries is not one of the top global producers of cotton yarn?
A) China B) India C) Pakistan D) Mexico E) Argentina
The line between zones of ablation and accumulation is the:
a. snow line b. terminal line c. ablation line d. equilibrium line
The names of enzymes are often derived from which of the following?
A) the name of their discoverer B) the compound on which they act C) both a and b D) neither a nor b
The activation of phosphorylase b involves which of the following?
A) conversion of one form of chemical energy to another B) conversion of chemical energy to electrical energy C) conversion of chemical energy to heat energy D) conversion of one form of chemical energy to mechanical energy