The steepest angle at which unconsolidated granular material remains stable is ________
A) oblique angles
B) the angle of momentum
C) the angle of repose
D) right angles
Answer: C
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Which of the following describes the most favourable northern hemisphere climate for the formation of continental glaciers over vast areas of North America?
A. summers are warm and winters are extremely cold B. summers are cool and winters are extremely cold C. summers are cool and winters are mild D. summers are warm and winters are mild
What is the approximate population of Southwest Asia and North Africa?
A) 100 million B) 200 million C) 500 million D) 1 billion E) 700 million
During the _______________ solstice, the Arctic Circle experiences 24 hours of darkness
Fill in the blank(s) with correct word
What is the universe expanding into?
a. A black hole b. If we live in an infinite universe, then the universe expands into nothing c. If the universe is finite, then eventually it should reach a boundary d. A super universe e. Both b and c