The speed of light in water is:
A) fastest for ultraviolet light.
B) same for all colors.
C) fastest for blue light.
D) fastest for red light.
E) fastest for violet light.
D
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Most forms of energy can be classified as either
a. chemical or physical b. kinetic or mechanical c. potential or mechanical d. chemical or kinetic e. potential or kinetic
A major factor in human population increase in the last 200 years is the emergence of early and modern agriculture
Indicate whether the statement is true or false
Oceanic crust is primarily composed of ____________, a heavy dark colored rock composed mostly of oxygen,
silicon, magnesium, and iron. Fill in the blank(s) with the appropriate word(s).
When water is pumped out of an unconfined aquifer through a well, a ________ often develops in the water table.
A. deflation structure B. thin film of pollution C. ground-water mound D. piercement structure E. cone of depression