premise: the water cycle is a kind of natural process sent2: the water cycle recycles water throughout the earth over time sent3: a river is a kind of flowing / moving body of water sent4: moving water on earth is a part of water cycle sent5: a natural process is performed by nature sent6: recyclable means a material can be recycled / reused many times sent7: renewable resources can be used over again.
hypothesis: water in a river is a renewable resource because it is recycled by nature over time