ASOS visibility measurements
A) rely on the ceilometer.
B) uses passive sensors.
C) are based on scattering by nearby particles.
D) all of the above
E) none of the above
C
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A strong positive index for the North Atlantic Oscillation (NAO) usually means that there is a ________ Bermuda (subtropical) high that results in ________ than average temperatures over the northern United States and northwest Europe.
A) weaker; cooler B) weaker; warmer C) strong; cooler D) strong; warmer
When contrasting a scientific hypothesis from a scientific theory,
a. a theory requires that predictions be made before it can be tested, supported, and ultimately become a hypothesis. b. a scientific theory must first be established before the hypothesis can be tested. c. a hypothesis is a yet untested explanation for a phenomenon, whereas a theory is a repeatedly-tested and widely accepted explanation for a phenomenon. d. a hypothesis is a repeatedly-tested and widely accepted explanation for a phenomenon, whereas a theory is a yet untested explanation for a phenomenon. e. a hypothesis must first be established before the theory can be tested.
Compared to western boundary currents, eastern boundary currents are ________
A) broad and deep B) broad and slow C) deep and swift D) narrow and deep E) shallow and swift
The threat posed by some synthetic chemicals is difficult to assess because of lack of knowledge of their residence times in natural systems.
Answer the following statement true (T) or false (F)