Which of the following may act as a local base level?
A) A lake that a river flows into B) The upper surface of a waterfall
C) A drainage divide D) An interfluve
A
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The instrument that measures humidity by measuring the amount of radiant energy absorbed by water vapor is the?
a. ?electrical hygrometer. b. ?infrared hygrometer. c. ?sling psychrometer. d. ?hair hygrometer. e. ?dew cell.
The fall equinox in the Southern Hemisphere occurs on this date
A) June 21 B) September 21 C) December 21 D) March 21
There are three types of plate convergences: continent-continent, ocean-continent, and ocean-ocean convergent plate boundaries
Indicate whether the statement is true or false
A community may undergo a regime shift or a phase shift when ________
A) they suffer a natural fire or flood B) lose keystone species or suffer a major climatic change C) pollutants cause a rapid rise in mutations D) all invasive and exotic species are removed E) have too many symbiotic relationships among species