Flowing air moving from higher to lower pressure is following the _______.
Fill in the blank(s) with the appropriate word(s)
Answer: Pressure gradient
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Outdoor air pollutants
A. can travel via prevailing winds. B. are a low risk human health problem. C. mostly occur in rural areas. D. are increasing in developed countries. E. are not regulated in the United States.
The Global Positioning System (GPS) uses a network of satellites to accurately determine one's location on Earth's surface
Indicate whether the statement is true or false
We know from the second law of thermodynamics that some of the high-quality energy in each step of processing is
A. wasted and degraded to lower-quality energy. B. upgraded to higher-efficiency energy. C. maintained at the same level of quality. D. destroyed completely. E. converted into renewable energy.
Match the volcanic hazard with its definition
A) Substances like CO2, SO2, Cl, and F that can result in climate change and be hazardous to human health B) Large volumes of ash precipitating from eruption cloud C) Fluid mudflow of volcanic debris D) Hot, fast-moving body of expanding gas and ash that hugs the flanks of the volcano E) Destructive sea wave triggered by powerful explosions or landslides into large bodies of water 1) Pyroclastic flow 2) Lahar 3) Tsunami 4) Ash Falls 5) Volcanic Gases