DEFINE turning point.
EXPLAIN why the Battle of Gettysburg is considered the turning point of the Civil War

Explanation:

definition - a time at which a decisive change in a situation occurs, especially one with beneficial results.

The Battle of Gettysburg was considered the turning point of the Civil War because the Confederates were winning the war, but after the Union wins the Battle of Gettysburg, the war gets a little closer. The Union wins the war, so this battle must have been the motivation for the Union to keep fighting.

hygrometers and hair thermometers (often found as part of hygrometers/psychrometers) can be used to measure humidity. barometers are used to measure atmospheric pressure, while anemometers are used to measure wind speed. so the 2nd and 4th choices should be the correct answers.