In a commercial airliner taking you from San Francisco to New York at 12,000 m (39,400 ft), what percentage of atmospheric pressure is below your plane? What percentage of atmospheric pressure resides above your flight altitude?
Using the graph you prepared in Figure 10.2, list the approximate answers to the following, assuming standard atmosphere conditions. The first answer is provided for you in brackets.
81%, 19%
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The formation, disappearance, or movement of landmasses over geologic time has altered oceanic and atmospheric circulation
a. True b. False Indicate whether the statement is true or false
Overland flow can concentrate in small grooves called ________, which can enlarge to form ________
A) rills; gullies B) striations; potholes C) gullies; rills D) potholes; striations E) striations; gullies
Marine mammals share all of the following traits with other mammals except: a. they have well-developed appendages
b. they give birth to live young. c. they have hair during some time of their lives. d. they are homeothermic.
________ is the most abundant and important greenhouse gas.
A. O3 B. CO2 C. O2 D. CO