Many things can happen when a large NEO strikes earth. Consider only ejecta for a moment. How and why would ejecta affect short term climate (over a few months)?
A. Ejecta would have no affect on earth's solar energy.
B. Lower global temperatures by blocking solar energy.
C. Raise global temperatures by trapping solar energy.
Answer: B
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Which of these factors are effective in moving heat from one location to another?
A. ocean currents B. clouds C. rain D. all of these
Which of the following are differences between an eruption column and pyroclastic flow?
A) Tephra in an eruption column stays hotter until it reaches the ground. B) A pyroclastic flow rises higher into the atmosphere than an eruption column. C) Damage from an eruption column is more restricted than a pyroclastic flow. D) A pyroclastic flow forms when the gas flux cannot support the column.
Where is stress concentrated in classical boudins?
What will be an ideal response?
Ice core data show that atmospheric CO2 concentrations were higher during each of the major glacial
periods and lower during the warmer interglacial periods Indicate whether the statement is true or false.