ecosystem - how living and non-living things interact in a particular setting, terrarium - mini enclosure for land plants and animals, aquarium - mini enclosure for water plants and animals , producer - an organism that can make its own food through photosysthesis, consumer - an organism that feeds on other organisms or organic matter , decomposer - an organism (usually bacteria or fungus) that breaks down dead or decaying matter, scavenger - an organism that eats dead or decaying organize matter (an animal), acid rain - rain that is contaminated with pollutants like sulfur dioxide and nitrogen oxide, sediment - small pieces of rock, plant, and animal material that are carried by water, wind, and ice  , trade-off - the act of giving up one thing in order to get another , pollutant  - anything that spreads harmful or unpleasant substances into the air, water, or ground, watershed - an area of land that is drained by a stream or river and its branches ,

Ecosystems

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