The Canadian Rockies were settled ________ most of the Western United States
A) Before
B) After
C) Around the same time
D) Long before
B
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Containerization was developed to facilitate long-distance transport by ________ before transferring to trucks and trains
A) truck B) train C) ship D) airplane E) rocket
The blue whale is endangered because of its ____.
A. low reproductive rate B. specialized niche C. commercial value D. narrow distribution E. high trophic level feeding
The "balance of nature" that characterizes well-functioning ecosystems occurs because of predominantly positive feedback mechanisms
Indicate whether the statement is true or false
Which of the following relationships is INCORRECT?
A) June 21 - subsolar point is at 23.5 N latitude. B) September equinox - subsolar point is at 23.5° S latitude. C) March equinox - subsolar point is at 0° latitude. D) June solstice - subsolar point is at 23.5 N latitude. E) December solstice - subsolar point is at 23.5 S latitude.