Jason wants to investigate how weather influences the temperature of soil. He takes measurements at the same time and same place in a field for five days and records his results. He also records the weather conditions at the time of each measurement. Which of the following best describes Jason’s investigation?
A. It is a successful experiment that tests a hypothesis.
B. It is a reliable experiment because he controls variables except for one test variable (independent variable).
C. It is an investigation that tests an idea without manipulating a test variable (independent variable).
D. It is a successful investigation because the data prove that weather conditions influence soil temperature.
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it's is the letter D that's my own answer
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