What is dispersion?
When white light passes through a glass prism, it is refracted and split up into different colors. This "selective" refraction is called dispersion.
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A mosquito flying at 2 m/s encounters a 2-m/s breeze blowing in the opposite direction, giving it a resulting speed over the ground of
A. 6 m/s. B. 3 m/s. C. 4 m/s. D. 0 m/s.
Which of the following stream properties tends to decrease downstream?
A) stream power per area of stream bed B) sediment load C) channel width D) slope of channel bed
The assessing the benefit of providing improved sanitation and safe water to the public involves
A. Placing a value on the time needed to travel to obtain water. B. placing a value on health care cost to treat diarrheal diseases. C. placing a value on the number of workdays lost due to illness. D. All of the options listed are involved.
The science that studies Earth's past climates is
A) dendrochronology. B) paleoclimatology. C) climate change science. D) meteorology.