There is some evidence that some aerosols and suspended particles in outdoor air pollution may actually slow the rate of atmospheric warming. Why do some scientist expect that these particles will not have a significant effect on counteracting projected climate change within the next 50 years?
What will be an ideal response?
Aerosols and particulate emissions are reducing in developed countries. The particles fall back to earth by gravity or are washed out of the atmosphere within a short time. However, carbon dioxide, a major greenhouse gas, remains in the lower atmosphere for a much longer time.
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Sometimes formations on land can shed light on ocean processes. What do the White Cliffs of Dover
in England show? a. An accumulation of very fine ooze of mixed origin that was pushed above sea level from plate tectonics. b. An accumulation of siliceous ooze that has risen above sea level from plate tectonics. c. A lithified calcareous ooze that was pushed above sea level from plate tectonics. d. A sheared cliff that formed during sea floor spreading
If you are unsure if a patient became hypothermic prior to developing cardiac arrest, you should:
A) withhold resuscitation. B) contact medical control. C) transport with BLS only. D) begin resuscitative efforts.
Describe the atmospheric conditions that produce sleet, freezing rain, and hail
What will be an ideal response?
The Fahrenheit scale is considered to be the LEAST useful temperature scale for scientific purposes because:
A) the Celsius scale was created first, and so has a longer tradition with the scientific community. B) the original fixed points for the scale were arbitrarily (and poorly) chosen, giving 0°F no real meaning. C) it is too difficult to convert Fahrenheit data into the Celsius scale. D) the modern Fahrenheit scale does not properly identify the steam point of water. Complete the following temperature conversions using the appropriate formulas.