Which of the following is the independent variable in the hypothesis- "If you study harder, then your grade will improve."

What class you are taking

Your starting grade

The change in your grade

The amount you study

Your starting grade is the independent variable

Explanation:

Hope that helps

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.