Which of the Following Contributed to the Improvement of Medieval

question 24

Multiple Choice

Which of the following contributed to the improvement of medieval agriculture?

• A)the steel-tipped plow
• B)chemical fertilizers
• C)the padded horse collar
• D)turnip animal fodder
• E)crop rotation

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Definitions:

Experimental Group

The group in an experiment that receives the treatment or the variable being tested.

Control Group

In experimental research, a group of subjects that does not receive the experimental treatment or intervention being tested, used as a benchmark to measure the effect of the treatment.

Controlled Experiment

A scientific test that is directly manipulated by a researcher, to determine the effect of a variable on a particular system.

Variable

An element, feature, or factor that is liable to vary or change; it is used in research to measure and analyze differences within experiments or studies.