Answer:
Questions need to have independent variable and dependent variable.
independent variable in this case would be :
phone usage
classical music
counting sheep
dependent variable in this case would be :
hours of sleep
So ask questions like
Will phone usage decrease the hours of sleep students get each night?
Will listening to classical music increase the hours of sleep students get each night?
Will counting sheep increase the hours of sleep students get each night?
Natural selection causes evolution. The correct option is B.
<h3>What is natural selection?</h3>
Natural selection refers to the process that leads to the adaptation of organisms to their environment.
Natural selection forces either select for or against traits. Traits that aid organisms in adapting are selected for, while those that do not aid in adaptation are selected against.
Traits that are selected for are allowed to perpetuate in the population while those that are selected against gradually fade from the population.
More on natural selection can be found here: brainly.com/question/9830102
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Answer:
Hypothesis is a educated guess
Explanation:
Answer:
D
Explanation:
because the stars dont move the earth does