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Paladinen [302]
3 years ago
14

Hakeem is testing the effects of sunlight on samples of soil. Which of these actions would introduce confounding variables into

Hakeem’s experiment? (THIS IS MULTIBLE CHOICE QUESTION)
a.He tests a theory that’s already been established.
b.He tests multiple hypotheses at a time.
c.He uses identical specimens when completing multiple trials.
d.He adjusts the independent variable and records the effects.
e.He uses different types of soil in each of his samples.
Geography
2 answers:
ddd [48]3 years ago
5 0
<span>He tests multiple hypotheses at a time.

</span>
<span>He uses different types of soil in each of his samples.


hope i helped :)
</span>
lukranit [14]3 years ago
3 0

b.He tests multiple hypotheses at a time.

e.He uses different types of soil in each of his samples.


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