Item ME112005: The carbon dioxide used by plants comes from the air.

Which of the following statements is TRUE about the carbon dioxide that is used by plants?

  1. It is combined with oxygen to make sugar molecules.
  2. It is absorbed through the roots of plants.
  3. It comes from the air.
  4. It is food for plants.

Distribution of Responses

Chart showing distrubtion of responses for Item ME112005

Percent of students responding correctly

Overall43%
Grades 6–841%
Grades 9–1244%
Male45%
Female41%
Primary Language is English44%
Primary Language is not English34%

View data table