TEST: Human Impact on Water Systems

How does the construction of a dam affect the groundwater levels in a watershed?

• It increases groundwater levels by preventing water from flowing downstream.

• It decreases groundwater levels by reducing the natural flow of water.

• It has no effect on groundwater levels.

• It increases groundwater levels by allowing more water to seep into the ground.

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Which of the following is a direct consequence of overfishing on ocean systems?

• Increased biodiversity in the ocean.

• Decreased fish populations and disruption of marine food chains.

• Improved water quality in the ocean.

• Enhanced growth of coral reefs.

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TEKS.SCI.7.11B

Explain how urban development can lead to harmful effects on surface water in a watershed.

• Urban development increases vegetation, which improves water quality.

• Urban development reduces runoff, leading to cleaner water.

• Urban development increases runoff, which can carry pollutants into surface water.

• Urban development has no impact on surface water quality.

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What is one way humans can positively influence ocean systems?

• By dumping waste into the ocean.

• By establishing marine protected areas.

• By increasing oil drilling activities.

• By overfishing to control fish populations.

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TEKS.SCI.7.11B

Identify a human activity that can lead to the contamination of groundwater.

• Planting trees.

• Using pesticides in agriculture.

• Building parks.

• Installing solar panels.

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Discuss the impact of plastic pollution on ocean systems and suggest a strategic plan to mitigate it.

• Plastic pollution has no significant impact on ocean systems.

• Plastic pollution enhances marine life by providing habitats.

• Plastic pollution harms marine life and ecosystems; a strategic plan could include reducing plastic use and improving waste management.

• Plastic pollution is beneficial for ocean systems as it increases biodiversity.

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What is the primary reason for the depletion of groundwater resources in many areas?

• Excessive rainfall.

• Overuse of groundwater for irrigation and industrial purposes.

• Natural evaporation processes.

• Increased vegetation cover.

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How can the introduction of non-native species by humans affect ocean systems?

• Non-native species always improve the health of ocean systems.

• Non-native species can outcompete native species, disrupting the ecosystem balance.

• Non-native species have no impact on ocean systems.

• Non-native species increase the diversity of ocean systems without any negative effects.

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Evaluate the effects of agricultural runoff on surface water quality in a watershed.

• Agricultural runoff improves water quality by adding nutrients.

• Agricultural runoff has no effect on water quality.

• Agricultural runoff can lead to nutrient pollution, causing algal blooms and oxygen depletion.

• Agricultural runoff purifies water by filtering out pollutants.

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Which human activity is most likely to cause ocean acidification?

• Planting trees.

• Burning fossil fuels.

• Building wind farms.

• Using solar panels.

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TEKS.SCI.7.11B