McDonald's breakfast: Egg McMuffinÂ® Nutrition Facts & Calories. - In Internet Explorer 7 you will need to adjust the default Shrink To Fit setting. Note: Printing via Mac Firefox is currently not supported. - In Internet Explorer 7 you will need to adjust the default Shrink To Fit setting.
ADVANTAGES: 1. Once a dam is constructed, electricity can be produced at a constant rate. 2. If electricity is not needed, the sluice gates can be shut, stopping electricity generation. The water can be saved for use another time when electricity demand is high.
Water pushes against the dam, but the buttresses are inflexible and prevent the dam from falling over. Buttress or hollow gravity dams were originally built to retain water for irrigation or mining in areas of scarce or expensive resources but cheap labour.A buttress dam is a good choice in wide valleys where solid rock is rare.ater pushes against the dam, but the buttresses are inflexible and prevent the dam from falling over. Buttress or hollow gravity dams were originally built to retain water for irrigation or mining in areas of scarce or expensive resources but cheap labour.