premise: ocean pollution can decrease the number of phytoplanktons and algae sent2: phytoplankton is a kind of plant sent3: plants are a source of oxygen through photosynthesis sent4: algae is found in bodies of water sent5: phytoplanktons are found in bodies of water sent6: algae is a kind of plant sent7: an ocean is a kind of body of water sent8: as the amount of a source of something decreases , the amount of that something will decrease.
hypothesis: the sun causes the weather patterns