Which of these make up the mass of an atom?

in a word, a scientific question is testable. a testable question is one that asks about objects, organisms or events found in the world around it

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.