Test variable (independent variable) The food, pollution, and predators. Outcome variable (dependent variable): The population Control group what is the control group

Which of the following represents the chemical reaction of hydrazine and hydrogen peroxide to produce nitrogen and water? a. nitrogen + hydrogen peroxide → hydrazine + water b. nitrogen + water → hydrazine + hydrogen peroxide c. hydrazine + hydrogen peroxide → nitrogen + water d. water + hydrogen peroxide → nitrogen + hydrazine

The body is protected against harmful flu viruses by

Which process of living things produces water that enters the water cycle