What three characteristics do we use to describe the textures of clastic sedimentary rocks? Describe how one of the characteristics can be used to provide information about the environment of deposition
What will be an ideal response?
The texture in clastic sedimentary rocks refers to grain size of dominant grains, sorting (the range of grain sizes present), and rounding of the grains due to abrasion during transport. Sorting and rounding may provide information on the amount of weathering, or extent of transport. Grain size may provide information about extent of transport too, as it takes more energy to move larger grain sizes.
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Enforcement of Superfund and cleanup of polluted sites has slowed because
A. responsible parties have been quick in cleaning up pollution. B. pollution is no longer a major concern for waste producing industries. C. local governments and small businesses willingly take on the responsibility for cleanup. D. the U.S. Congress refused to renew the tax on oil and chemical companies that funded the program. E. most of the waste sites in the U.S. have already been cleaned up.
Outsider Art is rarely found outdoors
Indicate whether this statement is true or false.
Which of the following best describes the solute effect?
A. Cloud droplets evaporate and ice crystals grow in a cold cloud. B. Pollutants are removed from the atmosphere by cloud droplets. C. Water droplets are kept from freezing at temperatures below 0°C. D. Dissolution of hygroscopic nuclei occurs as does condensation at relative humidities less than 100 percent.
This relatively large, symmetrical volcano contains interlayered lava flow, pyroclastic deposits, and volcanic mudflows. What kind of volcano is it?
A) Cinder cone
B) Shield volcano
C) Composite volcano
D) Volcanic dome
E) Caldera