The rate of the earth's rotation determines the strength of the pressure gradient force. Indicate whether the statement is true or false
false
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____ is a cloud with its base at the earth's surface.
a. dew
b. fog
c. smog
d. mist
e. haze
Why does a glowing splint of wood burn only slowly in air, but rapidly in a burst of flames when placed in pure oxygen?
A) There is a greater number of collisions between the wood and oxygen molecules. B) Oxygen is a flammable gas. C) Pure oxygen is able to absorb carbon dioxide at a faster rate. D) A glowing wood splint is actually extinguished within pure oxygen because there's no room for the smoke to expand.
The scientific method is characterized as:
a. an orderly process in which theories are proved to be absolutely true. b. an orderly process in which a test simplifies an observation in nature by controlling the conditions in which they are made. c. an orderly process in which theories are verified or rejected. d. a testable speculation or explanation of a theory.
After Hurricane Katrina, many people moved away from New Orleans. As they settled elsewhere in the U.S., they maintained their ways of doing things. This is an example of
A) expansion diffusion B) relocation diffusion C) hierarchical diffusion D) contagious diffusion E) all of the choices are correct.