Which of the following explains why water can support life below water? 1 Water is denser when frozen, protecting underwater organisms.
2 Water cools and heats very quickly to protect aquatic ecosystems.
3 Water can dissolve most substances in their solid, liquid, and gas form.
4Water cannot move against gravity; this keeps its molecules together.

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.

human didn't come from monkeys man i hate these stupid teachers

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