Which is the best definition of wind?

a.
the vertical movement of air

b.
the horizontal movement of air

c.
the westerly movement of air above the earth's surface

d.
the movement of air between two objects that are in contact

Identify the sentence in which the underlined word or words are punctuated incorrectly. a) pam was (well prepared) for the debate. b) she had (read three quarters) of the material more than once. c) she has always been (self assured). d) the winner needs a (two-thirds) majority of the votes.

How does the yellow fever altered history

Which statement correctly analyzes how the passages work together to create a central idea?