The ozone layer protects living organisms on earth by

reflecting all solar energy coming toward earth
blocking solar ultraviolet (uv) radiation
blocking solar infrared (ir) radiation
absorbing incoming gamma radiation

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.

some of your causes might be acidic rain or natural wildfires that cause the parks to be degraded

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