What is the angle of the sun in Toronto, Ontario (latitude 44°N) on December 21?
A. 16.5°
B. 18.5°
C. 20.5°
D. 22.5°
Answer: D
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In the Northern Hemisphere, cold currents tend to flow from the ________. In the Southern Hemisphere, warm currents tend to flow from the ________.
A) south; south
B) north; north
C) south; north
D) north; south
The area served by a port is called a ________ ________
Fill in the blank(s) with correct word
Deficiency of which of the following is associated with pellagra?
A) folic acid B) nicotinic acid C) riboflavin D) thiamine
How do the tropical rain forests differ from the temperate deciduous forests?
A. Rain forests have more foliage at ground level than deciduous forests. B. Rain forests have fewer lianas than deciduous forests. C. Deciduous forests have a slower rate of decomposition than rain forests. D. Rain forests have lower species diversity than deciduous forests. E. Deciduous forests have a dense canopy of broad leaves, compared with an open canopy of the rain forest.