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Item WC006001: The amount of water vapor in the air can increase and it can decrease.

Which of the following statements is TRUE about changes to the amount of water vapor in air at a particular place over time?

  1. The amount of water vapor in air can increase, but it cannot decrease.
  2. The amount of water vapor in air can decrease, but it cannot increase.
  3. The amount of water vapor in air can increase, and it can decrease.
  4. The amount of water vapor in air cannot change.
Distribution of Responses
Chart showing distrubtion of responses for Item WC006001
Students Responding Correctly
Group Correct Total Percent
Overall 1148 2285 50%
Grades
  6–8 708 1410 50%
  9–12 439 873 50%
Gender
  Male558108352%
  Female579116950%
Primary Language
  English1023203850%
  Other9918952%

View data table