Ok so whoever can answer all of these for me gets brainliest don't do a hypothesis though because I do that on my own just the independent and dependant variables pls What effect does road salt have on cars?
Hypothesis:
Independent variable:
Dependent variable:

What effect does fertilizer have on rose bushes?
Hypothesis:
Independent variable:
Dependent variable:

What effect does salt levels have on blood pressure?
Hypothesis:
Independent variable:
Dependent variable:

Do light levels have an effect on bird migration?
Hypothesis:
Independent variable:
Dependent variable:

What effect does artificial sweetener have on blood sugar levels?
Hypothesis:
Independent variable:
Dependent variable: