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Naya [18.7K]
3 years ago
14

What is 221,000,000,000,000,000,000 expressed in scientific notation?

Biology
2 answers:
padilas [110]3 years ago
5 0
I think it's 2.21^20 
lara [203]3 years ago
3 0
2.21 times 10 to the 21 power
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Answer:

If leaf color change is related to temperature, then exposing plants to low temperatures will result in changes in leaf color:

Independent: <u>temperature</u>.

Dependent: <u>leaf color</u>.

Other variable(s): According to the information, <u>there are no other variables</u>.

Explanation:

When formulating a hypothesis, it is inevitable that the presence of variables on which the hypothesis is formed is established. The hypothesis raised is the <u>effect of temperature on the color change of the leaf of a plant</u>.

The<em> independent variable</em>, used in research work, is an element that does not depend on other variables but can influence the behavior of the dependent variable. In this case, the independent variable is the temperature. In addition, the independent variable can be managed to observe its effect on other variables.

An <em>dependent variable</em> is a characteristic that is influenced or modified by the presence of other variables, such as the independent variable of a study. In this case is the color of the leaf of a plant.

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