The greenhouse effect keeps heat in our atmosphere, keeping Earth at temperatures we can survive in. Greenhouse gases like carbon dioxide and methane cause the greenhouse effect. If we continue to put more and more greenhouse gases into our atmosphere, what will happen to average temperatures on Earth?

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