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2ND NINE WEEKS FINAL REVIEW

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Across
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One characteristic needed for life
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A very sustainable ecosystem is created by an increase in....
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Catastrophic event that causes a dust cloud that blocks the sun
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An organism that allows nutrients from dead organisms to be recycled back into the ecosystem
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The first organism to show up after a field has been abandoned
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The greatest amount of deposition occurs at the ______ of a river (the opening of a river)
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Pollution may __________ into the groundwater and enter the water table and aquifers.
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Rock being dissolved by groundwater is an example of... (2 words)
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A product of photosynthesis
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Flowing water and years of water erosion can create a...
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A plant that is wilted and weak is experiencing a lack of... (2 words)
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Succession that begins with bare rock formed from the hardening of magma
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Pollutant that can cause negative effects of a river by causing algae for overgrow
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Photosynthesis cannot occur without...
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In order to be a Goldilocks Planet, a planet must be the correct distance from the nearest...
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Succession that begins with a catastrophic event or disaster
Down
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The first species to arrive in a new ecosystem
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Holds greenhouse gases and necessary for life
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An area of land where water runs off and collects at an area of lower elevation (2 words)
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A pollutant that percolates into the groundwater
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A type of physical weathering due to water freezing in cracks (2 words)
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The term used to describe the ecosystem that no longer undergoes ecological succession (2 words)
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A type of chemical weathering that causes rust
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Tornadoes form over...
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The least biodiverse biome
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An ecosystem with _____ organisms is experiences more biodiversity.
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Catastrophic event you would most likely find along a river
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The process of plant roots breaking down rocks mechanically (2 words)
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The most biodiverse biome
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A large geographical area of land with similar plants and animals
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The first organism that appears during primary succession
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Hurricanes form over...
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A common contribution to pollution created by humans
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Catastrophic event that can destroy an ecosystem and cause secondary succession to take place
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Catastrophic even that affects the amount of water available for humans