Read the Following Scenario, and Answer the Questions Below

question 20

Multiple Choice

Read the following scenario, and answer the questions below.

THE EXPERIMENT:
Researchers wanted to determine whether pesticide Z is effective at killing grasshoppers that typically invade cornfields. Two 10- acre cornfields located 1 mile apart were chosen. The cornfield to the west was sprayed only with water. The cornfield on the east received the same amount of water with a 10% solution of pesticide Z. The number of grasshoppers in the fields was recorded every week for 10 weeks.

RESULTS:
The number of grasshoppers in the west field treated only with water doubled after 10 weeks.
The number of grasshoppers in the east field treated with pesticide Z declined by 50% after 10 weeks.

-What was the independent variable in the above experiment?

• A)The location of the fields
• B)The number of grasshoppers receiving the pesticide
• C)The number of grasshoppers after 10 weeks
• D)Whether pesticide Z was applied

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Definitions:

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The conduct, behavior, and attitude exhibited by professionals, characterized by ethical practices, competence, and courtesy.

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