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how do green roofs compare to traditional roofs?
o green roofs have less impact on the energy performance of buildings
o green roofs have greater stormwater runoff
o green roofs initially cost more to install
o green roofs need more frequent replacement

You and a group of friends are spending your vacation hiking through the mountains. it is cold in the mountains. you will be expending a lot of energy while hiking and you will need plenty of energy to keep you warm. you should pack foods high in to provide the most energy or kilocalories per gram of food. a) carbohydrates b) lipids (fats) c) proteins d) sugars