What is the first step in a scientific investigation? a. asking questions
b. drawing a conclusion
c. making observations
d. doing research

I think a because without asking question how are u gonna know what u gonna do? Then u do reserch of the question and the c and final and b

Explanation:

a.asking questions.

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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.