resources - Clean water, clean air, land to live, places to grow vegetables, there are our important_______., disappear - If we keep dumping dirty water and plastic garbage into the ocean, the sea animals will _____ very quickly., pollution - Humans let out dangerous things into the nature and change the environment. , biodegradable - When something can disappear forever in the nature, it’s ____., garbage - Things we don’t want and throw away., whale - The biggest mammal that lives in the ocean., oil spill - When a ship’s oil tank is broken and the oil flow to the water., octopus - This animal has 8 “legs” and 8 “brains”., dolphin - This anima looks like a fish but it’s a mammal., layer - There are three ___ in a sandwich. There is one ____ in a hamburger., plastic - If you throw this kind of things to the ground or to the ocean, it will stay there for hundred of years.,

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