Item CL006002: Air currents form when warm air rises and cold air sinks.

What causes air currents to form?

  1. Air currents form when cold air rises and warm air sinks.
  2. Air currents form when warm air rises and cold air sinks.
  3. The rising and sinking of air does not create air currents. Air currents form when cold air moves along the surface of the earth toward warmer air.
  4. The rising and sinking of air cannot cause air currents to form. Air currents form only because of the rotation of the earth.
Distribution of Responses
Chart showing distrubtion of responses for Item CL006002
Students Responding Correctly
Group Correct Total Percent
Overall 894 2148 42%
Grades
  6–8 399 1068 37%
  9–12 492 1070 46%
Gender
  Male424103441%
  Female444104542%
Primary Language
  English773182442%
  Other7322932%

View data table