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2ND NINE WEEKS FINAL REVIEW

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