Which of the following answer choices represents a non-point source of water pollution?
O Toxic waste given off by a chemical research facility
O Exhaust given off by car tailpipes
O Emissions ejected out from smokestacks
Fertilizers carried away from farmlands by rainwater

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.