Item EN020002: Many changes to the physical environment have happened from the time that earth was formed until the present day.

What is TRUE about how the physical environment of the earth has changed over time?  The diagram below represents a timeline showing key events mentioned in the answer choices.

  
 

  1. Many changes to the physical environment happened before life began, but hardly any changes have happened since the time that life began.
  2. Many changes to the physical environment happened after life began but before humans appeared.  Hardly any changes happened before life began or after humans appeared.
  3. Many changes to the physical environment happened after humans appeared, but hardly any changes had happened before humans appeared.
  4. Many changes to the physical environment have happened from the time that earth was formed until the present day. 

Distribution of Responses

Chart showing distrubtion of responses for Item EN020002

Percent of students responding correctly

Overall46%
Grades 6–843%
Grades 9–1250%
Male45%
Female47%
Primary Language is English47%
Primary Language is not English39%

View data table