This page includes activities for the classroom. Every ecosystem depends on the continual flow of natural cycles. These cycles will continue as long as the earth revolves around the sun .
Cycles are essentially forever.
Some cycles are more obvious than others. The water cycle is extremely apparent in Olympic National Park where yearly rainfall on the west side can be upwards of 180 inches. Water is returned into the air by evaporation and transpiration . The carbon cycle is the engine that drives all life. We are, after all, carbon-based organisms just like the huge trees at Olympic.