Which of the following is an example of tertiary circulation?
A) Migratory high and low pressure systems B) General circulation of the atmosphere
C) Subtropical high pressure systems D) Land-sea breezes
D
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A small thunderstorm cloud with virga falling out of its base and blowing dust at the ground can be a warning of a severe hazard to an airplane. Which of the following statements explains what this warning indicates?
A. It is the first indication of a tornado. B. It is an indication that hail will soon begin to fall. C. It is an indication that the airplane could be struck by lightning. D. It is an indication of an intense downdraft or microburst.
What is the correct order of sediment size from smallest to largest?
a. clay, silt, sand, granule, pebble, cobble, boulder b. clay, silt, sand, pebble, granule, boulder, cobble c. silt, clay, sand, granule, cobble, pebble, boulder d. silt, clay, sand, granule, pebble, boulder, cobble
Each Pacific Decadal Oscillation phase tends to predominate for 20 to 30 years before switching to the other phase
a. True b. False
Which type of physical weathering involves the removal of overlying materials?
A. mineral growth B. wedging C. unloading D. abrasion