Mountain lions/highest trophic levels receives less energy as energy is lost at each level/mountain lions are larger than most animals and require (smaller) individuals for food.
The egg shell would be most representative of the Earth's Mantle or "Crust", the yolk and white would represent the molten metal inside the earths core I assume.
Based on the above sources, the most economical to use is the hydroelectric, since there is a fast-moving current in the river. Also, it is the commonly used energy-generation process. For wind turbine, it would require a minimum of 8kph to power the wind turbine, in this case is not sufficient. Coal deposit is not likely an option because this has some environmental concerns. Solar is not also an option since the village frequently has rainy days.
