Which of the following is NOT a concept of volunteered geographic activity?
A) Citizens as sensors
B) Crisis mapping
C) Reporting sightings of animals and plants
D) Participation in NASA's astronaut program
E) Reporting weather at your house
Answer: D
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The following image represents which kind of matter?
A. a compound B. an element C. a mixture D. none of the above E. all of the above
Chinook winds frequently bring warm temperatures to the Great Plains, even in the middle of winter. Why are these winds so warm?
A) Volcanic activity in the Rockies warms the air before it reaches the plains. B) Air as it descends tends to expand causing a warming effect. C) Warm air from the Gulf of Mexico meets the cold, dry air from the Arctic. D) Increasing pressure warms the air as it descends down the slopes of the Rocky Mountains.
In comparing the distribution of acid rain and ozone pollution
A. the Gulf Coast suffers from the highest levels of ozone pollution and the highest levels of acid rain. B. the East Coast has the lowest levels of ozone pollution and acid rain. C. California suffers from the high levels of ozone pollution but not highest levels of acid rain.
Aside from normal photographic film, ________ film has proven very valuable for interpretation of Earth's resources from airborne cameras
A) color infrared B) ultraviolet C) thermal infrared D) x-ray E) gamma ray