A stream or river that flows all year is referred to as
A. perennial.
B. a tributary.
C. ephemeral.
Answer: A
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What will be an ideal response?
Tens of thousands of years ago, languages may have been joined together as
A) branches. B) superfamilies. C) groups. D) lingua franca. E) families.
Convectional lifting results when air from different directions flows toward an area of low pressure
Indicate whether the statement is true or false
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a. Energy invested/Energy returned. b. Energy invested × Energy returned. c. Energy returned/Energy invested. d. Energy returned × Energy invested.