Aquatic Ecosystems and Water Cycle Quiz
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Questions and Answers

What is a source of dissolved oxygen (DO) in the ocean?

  • Chemical reactions in sediments
  • Photosynthesis by aquatic plants (correct)
  • Increased temperature of water
  • Evaporation of seawater

What are characteristics of aquatic biomes commonly studied?

  • Urban development and pollution
  • Groundwater depletion and soil erosion
  • Temperature and salinity (correct)
  • Wind patterns and ocean currents

Which steps are involved in the water cycle?

  • Runoff, storage, evaporation
  • Condensation, precipitation, evaporation (correct)
  • Infiltration, transpiration, absorption
  • Evaporation, filtration, precipitation

What is an example of point pollution?

<p>Industrial discharge from a factory (C)</p> Signup and view all the answers

What are the effects of fertilizer pollution on aquatic ecosystems?

<p>Oxygen depletion and algal blooms (A)</p> Signup and view all the answers

Which factor contributes to ocean warming?

<p>Increased ice cap melting (C)</p> Signup and view all the answers

What is a consequence of coral bleaching?

<p>Loss of habitat for marine species (C)</p> Signup and view all the answers

What are the steps of wastewater treatment?

<p>Sedimentation, filtration, disinfection (B)</p> Signup and view all the answers

Flashcards

Source of DO in ocean

Dissolved oxygen (DO) in the ocean comes from the atmosphere, photosynthesis by marine plants, and mixing with water from other sources.

Aquatic biomes

Different types of aquatic environments (like lakes, rivers, and oceans) with unique characteristics, influencing organisms living within them.

Water cycle steps

The continuous movement of water through evaporation, condensation, precipitation, and collection.

Water withdrawal graph interpretation

Analyzing graphs showing water usage over time to understand trends, patterns, and impacts on water resources.

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Point vs. Nonpoint Pollution Examples

Point pollution (specific source) - industrial discharge; non-point pollution (diffuse source) - agricultural runoff.

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Macronutrient testing reason

Used to understand the levels of essential nutrients, like nitrogen and phosphorus, in water to see impacts of fertilizer.

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Effects of fertilizer pollution

Excess fertilizer causes eutrophication (algal blooms), oxygen depletion, and harm to aquatic life.

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Oxygen sag curve interpretation

Analyzing a graph showing DO levels after pollution input to understand the impact on water quality downstream.

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Eutrophication results

Excessive nutrient runoff leads to algal blooms, oxygen depletion, and dead zones in water bodies.

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Causes of change in DO

Changes in dissolved oxygen (DO) can result from pollution, temperature changes, and biological activity.

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Wastewater treatment steps

Series of processes to remove contaminants from wastewater, improving water quality for release back into the environment.

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Ocean warming causes

Global warming is a key driver, leading to increased water temperatures.

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Coral bleaching results

Coral bleaching occurs when corals expel their symbiotic algae, leading to their death and disrupting the reef ecosystem.

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Ocean acidification results

Increased CO2 in the atmosphere leads to more acidic oceans, making it harder for marine organisms with calcium carbonate shells to survive.

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DO calculation (nomograph)

Using a nomograph to determine dissolved oxygen (DO) levels in water samples based on measured conditions.

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Flood protection

Measures taken to prevent or mitigate the impact of floods, such as building dams or improving drainage systems.

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Wetland destruction results

Loss of wetlands has negative impacts on water filtration, flood control, and biodiversity.

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