Which of the following sediment-covered shores represents the lowest-energy environment?
A) Boulder beaches
B) Mud flats
C) Pebble berms
D) Salt marshes
E) Sand beaches
B
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Sinkholes result from ________
A) building on floodplains B) overconsumption of water from aquifers weakening the substrate C) substrates that become weak following rain D) poorly drilled wells in soft soils E) flood damage and chemical erosion
How much are global surface temperature expected to increase by the year 2100 if humans replace much of today's fossil fuel combustion by new and more efficient technologies?
A) 2°C B) 2.5°C C) 3°C D) 3.5°C E) 4°C
What is NOT true about continental ice sheets?
A. Ice accumulates to great depths in the interior. B. They project out over the sea as ice shelves. C. Ice at the margins is thinner than in the interior. D. The process of calving shapes ice shelves. E. Ice does not flow or move like alpine glaciers.
The most important process of cloud formation in the atmosphere is ________.
cooling by compression of air cooling by release of latent heat and vaporization cooling by expansion of air radiation cooling