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Item CL108002: The place that gets the greatest intensity of sunlight over the course of the day in the middle of July is 20° north of the equator.

Which of the places shown in the diagram below has the greatest intensity of sunlight over the course of a day in the middle of July?

  1. 0° (equator)
  2. 20° N
  3. 30° N
  4. All places in the northern hemisphere have equal intensity of sunlight over the course of a day in the middle of July.
Distribution of responses
Answer Choice
Overall
Grades
Gender
Primary Language
 
n = 2197
6–8
n = 1125
9–12
n = 1066
Male
n = 1049
Female
n = 1083
English
n = 1924
Other
n = 183
A. 33% 32% 35% 32% 35% 34% 31%
B. 27% 27% 28% 29% 26% 27% 28%
C. 22% 22% 22% 22% 22% 22% 23%
D. 17% 20% 15% 17% 18% 17% 18%