The distinction of two groups of birds (brown cardinals and bright red cardinals_ best illustrates the principle of similarity. According the principle of similarity <span>things which share visual characteristics (size, shape, color, texture, ...) are belonging together</span> .
Answer:
I believe it is B: Exposed soil will likely wash into the river every time it rains.
Explanation:
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Environmental Protection Agency (EPA) uses clean up authorities independently to address clean up situation:
-Under Superfund, or CERCLA, they find companies or the people responsible for contamination and negotiates with them to clean up the site.
-<span>Resource Conservation and Recovery Act (RCRA) provides EPA with enforcements authorities to ensure the sites are clean up.</span>
Answer:
Independent variable: CALCULATOR
dependent variable: SPEED AT SOLVING LONG DIVISION PROBLEMS
controlled variable: SAME GRADES, SAME PROBLEM
Explanation:
Independent variable is the variable that is changed or manipulated by the experimenter in an experiment. In this experiment, the independent variable is the CALCULATOR, which was changed in the experiment.
Dependent variable is the variable that is measured in the experiment. It is the variable that responds to changes made to the independent variable. In this experiment, the dependent variable is the SPEED AT SOLVING LONG DIVISION PROBLEMS.
Controlled variable or constants are variables that are kept unchanged for all groups throughout the experiment. In this experiment, the controlled variables are: SAME GRADES, SAME DIVISION PROBLEM