Exploring Freshwater Ecosystems Quiz

What is the primary source of energy for freshwater ecosystems?

• Wind

• Sunlight

• Geothermal heat

• Tidal forces

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Which of the following is a characteristic feature of wetlands?

• High salinity

• Low biodiversity

• Water-saturated soil

• Rocky terrain

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Explain how wetlands contribute to flood control.

• Wetlands absorb excess rainwater, reducing the speed and volume of runoff.

• Wetlands increase the speed of water flow, preventing flooding.

• Wetlands evaporate water quickly, reducing water levels.

• Wetlands block water flow, causing water to accumulate upstream.

Describe the process by which groundwater is replenished.

• Groundwater is replenished by the melting of glaciers.

• Groundwater is replenished by the condensation of atmospheric moisture.

• Groundwater is replenished by the infiltration of rainwater through soil and rock layers.

• Groundwater is replenished by the evaporation of surface water.

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What is an aquifer?

• A type of wetland

• A body of permeable rock that can contain or transmit groundwater

• A freshwater lake

• A river system

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Identify one major human activity that negatively impacts freshwater ecosystems.

• Sustainable fishing

• Deforestation

• Organic farming

• Wildlife conservation

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How does agricultural runoff affect freshwater ecosystems?

• It increases biodiversity by adding nutrients.

• It causes eutrophication, leading to algal blooms and oxygen depletion.

• It purifies the water by filtering out pollutants.

• It stabilizes water temperature by providing shade.

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Evaluate the impact of urban development on groundwater recharge.

• Urban development increases groundwater recharge by creating more surfaces for water infiltration.

• Urban development decreases groundwater recharge by increasing impervious surfaces, reducing infiltration.

• Urban development has no impact on groundwater recharge.

• Urban development enhances groundwater recharge by diverting water to aquifers.

Which of the following is a benefit of wetlands in terms of biodiversity?

• Wetlands support a limited number of species.

• Wetlands provide habitat for a wide variety of plant and animal species.

• Wetlands are inhospitable to most forms of life.

• Wetlands only support aquatic species.

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Analyze the role of aquifers in the water cycle.

• Aquifers store water temporarily and release it directly into the atmosphere.

• Aquifers act as a permanent storage for water, preventing it from entering the water cycle.

• Aquifers store groundwater and release it slowly into rivers and lakes, maintaining flow during dry periods.

• Aquifers have no role in the water cycle.

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