I'll go ahead and give you an answer key here.
Look at each pair of statements. Each statement in the pair is labeled as a cause or as an effect. Mark the pair of statements if they are correctly labeled.
Answers: Cause: There were fewer workers.
Effect: Peasants left their manors.
Cause: The manor system crumbled.
Effect: Peasant farmers prospered.
The plague significantly reduced the population of Europe.
Answer: True
The social order of life on the manor changed because peasants left and were able to earn higher wages.
Answer: True
Mark the statement if it correctly describes an effect of the plague on Europe.
Answers: Scholars took an interest in medicine and the sciences.
Most people moved out of towns and away from others.