Aquatic Ecosystem Quiz

What does the Latin root word "Aqua" mean?

• Life

• Water

• Earth

• Air

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Which of the following is NOT a factor that the capability of an aquatic ecosystem to sustain life depends on?

• Quantity of dissolved sediments

• Levels of dissolved nutrients

• Water's physiochemical characteristics

• The color of the water

What percentage of the Earth's surface is covered by water?

• Approximately 71%

• About 50%

• Nearly 80%

• Around 60%

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NGSS.MS-ESS2-4

What percentage of the Earth's water resources is freshwater?

• About 96.5%

• Approximately 71%

• Nearly 2.5%

• The remaining 3.5%

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What is a key function of aquatic ecosystems?

• Nutrient Cycling

• Pollution Production

• Land Erosion

• Air Depletion

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Which organisms contribute to nutrient cycling in aquatic ecosystems by breaking down organic matter?

• Plants and algae

• Microorganisms

• Land animals

• Birds

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What role do wetlands, marshes, and other aquatic habitats play in water filtration and purification?

• They increase the amount of pollutants and sediment in water.

• They act as natural filters, removing pollutants and sediment from water.

• They have no impact on water quality and clarity.

• They absorb pollutants and release them into the atmosphere.

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How do oceans contribute to climate regulation?

• By absorbing and storing heat from the sun and moderating temperatures on land and in the atmosphere.

• By releasing large amounts of carbon dioxide into the atmosphere.

• By decreasing the amount of plankton in the ocean.

• By reflecting sunlight back into space without absorbing any heat.

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What is the significance of carbon sequestration in aquatic ecosystems?

• It increases greenhouse gas emissions and contributes to climate change.

• It has no significant impact on the environment.

• It helps to mitigate greenhouse gas emissions and combat climate change.

• It reduces the amount of carbon in plant biomass and sediment.

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What is one of the ways that aquatic environments contribute to recreation and tourism?

• By offering opportunities for recreational activities such as fishing, boating, and swimming.

• By prohibiting any form of recreational activities to preserve the environment.

• By only allowing scientific research and no recreational activities.

• By serving as locations for industrial activities, not recreation.