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Aquatic Ecosystems: Rivers & Streams

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Last updated about 1 year ago
4 questions
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1
Earth is sometimes called "the water planet". As such, marine ecosystems have a significant impact on the planet. For example, through photosynthesis, marine algae consume carbon dioxide (CO2) from the atmosphere and produce over 50% of the atmosphere's oxygen. Additionally, the evaporation of water from oceans eventually provides the majority of precipitation-rain and/or snow.
Question 1
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Question 2
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Question 3
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Question 4
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Insect larvae
material deposited by water, wind, or glaciers
Sediment
geological process in which earth materials are worn away & transported by natural processes
Erosion
primary food source for fish
What are the 3 types of aquatic ecosystems?
saltwater
transitional
rivers
freshwater
lakes
ocean
swamp
Marine
marsh
What natural process below can add oxygen to water?
rain
wind blowing
fish swimming
snow
What prevents sediment & organic materials from building up in rivers & streams?
rain
flooding
the fish that live in them
water currents