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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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Answer:

The answer is below

Explanation:

a) Lily has 24 chocolate chip cookies and 32 vanilla wafers, since she has to put the chocolate and vanilla in the same bag, the number of bags must be a factor of 24 and 32. Below the bags are listed:

Number of bags:                       1              2              4                  8

Number of cookies:                  24           12              6                 3

Number of wafers                      32           16              8                 4

This means that the largest number of bag is 8 which would contain 3 cookies and 4 wafers

b) For the chocolate chip to be placed, the number of bags must be a factor of 24. It is given below:

Number of bags:                    1           2          3           4          6         8           24

Number of cookies:              24        12         8           6          4           3          1

c) For the vanilla wafers to be placed, the number of bags must be a factor of 32. It is given below:

Number of bags:                    1           2             4          8         16           32

Number of wafers:                32        16             6          4          2          1

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The movement of groundwater causes erosion that is responsible for the formation of caves. These caves are formed due to mechanical weathering of rocks. Mechanical weathering plays an major role in creating caverns by dissolving of limestone rock due to acidic water that reacts with limestone and removes it with the passage of time that forms caves. The normal pH water can't perform this job due to no reaction occurs with limestone.

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