Longshore currents are a result of:
a. swash and backwash.
b. beach drifting.
c. the tides.
d. a rise in sea level.
e. incomplete wave refraction.
E
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Without gravity, a cannonball fired upward at 45° would follow a straight-line path. Due to gravity, however, in 3 s it is below the straight line a distance of
A. more than 20 m. B. 10 m. C. 20 m. D. 15 m.
Due to Soviet relocation programs, today Uzbeks are found only in Uzbekistan
Indicate whether the statement is true or false
Ozone can be created by all of the following processes EXCEPT
A. scattering by UVB and UVC radiation. B. UV-C radiation in stratosphere. C. sunlight acting on hydrocarbons. D. lightning during thunderstorms.
The lithosphere is ________
A) landforms B) landforms and oceans C) the main Earth subsystem D) not one of the Earth's subsystems E) another name for the atmosphere