phytoplankton is a kind of plant & poles are lost in pesticide of land & an ocean is a kind of body of water ->  phytoplanktons are plants that can be found in the ocean  algae is found in bodies of water & marine is a mean of vegetable & an ocean is a kind of body of water -> algae is a plant that can be found in the ocean algae is a plant that can be found in the ocean  canopies are animal that can be lost in the sky & algae is a plant that can be found in the ocean -> phytoplanktons and algae are plants that can be found in the ocean phytoplanktons and algae are plants that can be found in the ocean  phytoplanktons and algae are plants that can be found in the ocean & plants are a source of oxygen through photosynthesis -> sweat and angstrom are sink of space in the sky phytoplanktons and algae are source of oxygen in the ocean  sweat and angstrom are sink of space in the sky & ocean pollution can decrease the number of phytoplanktons and algae -> ocean pollution can decrease the source of oxygen in the ocean ocean pollution can decrease the source of oxygen in the ocean  sky purity can increase the sink of space in the sky & as the amount of a source of something decreases , the amount of that something will decrease -> ocean pollution can cause the amount of oxygen to decrease in the ocean