Human Impact on the Hydrosphere Quiz

What is the main cause of water pollution in rivers and oceans?

• Bottled water

• Air pollution

• Deforestation

• Industrial waste, agricultural runoff, and untreated sewage

What is the term used to describe the practice of catching too many fish at once, so the breeding population becomes too depleted to recover?

• underfishing

• overfishing

• excessive fishing

• overharvesting

What is the primary purpose of dam construction on rivers?

• Creating natural habitats for wildlife

• Water storage, flood control, and hydroelectric power generation

• Increasing water pollution

• Reducing the flow of the river

How does deforestation near water sources impact the hydrosphere?

• It helps in maintaining the water cycle

• It has no impact on the hydrosphere

• It increases the water quality

• It can lead to soil erosion, increased sedimentation in water bodies, and disruption of the water cycle.

What is agricultural runoff and how does it affect the hydrosphere?

• It is the flow of water carrying excess oxygen and nutrients from agricultural fields into nearby water bodies, promoting healthy aquatic ecosystems.

• It is the flow of water carrying excess trash and debris from agricultural fields into nearby water bodies, improving water quality and supporting aquatic life.

• It is the flow of water carrying excess salt and minerals from agricultural fields into nearby water bodies, purifying the water and benefiting aquatic organisms.

• It is the flow of water carrying excess fertilizers, pesticides, and other chemicals from agricultural fields into nearby water bodies, causing water pollution and disrupting aquatic ecosystems.

What are the main sources of water pollution in urban areas?

• Oil spills, deforestation, and radioactive waste

• Agricultural runoff, air pollution, and plastic waste

• Industrial discharge, sewage, and stormwater runoff

• Pesticide use, noise pollution, and light pollution

What are the consequences of overfishing on marine ecosystems?

• Decrease in fish population, increase in food chain stability, and increase in biodiversity.

• No impact on fish population, no disruption of food chain, and no loss of biodiversity.

• Increase in fish population, restoration of food chain, and increase in biodiversity.

• Decrease in fish population, disruption of food chain, and loss of biodiversity.

How does dam construction impact the natural flow of rivers and the surrounding ecosystems?

• It alters water levels, temperature, and sediment flow.

• It reduces the risk of flooding and improves the health of surrounding ecosystems.

• It increases biodiversity and improves the natural flow of rivers.

• It has no impact on the natural flow of rivers and surrounding ecosystems.

What are some solutions to reduce water pollution in rivers and oceans?

• Increasing plastic pollution through improper waste management

• Promoting unsustainable agricultural practices

• Encouraging more industrial waste disposal

• Implementing stricter regulations on industrial waste disposal, promoting sustainable agricultural practices, and reducing plastic pollution through proper waste management.

How can individuals help prevent agricultural runoff from contaminating water sources?

• By ignoring sustainable farming practices and overusing fertilizers and pesticides

• By increasing the use of synthetic fertilizers and pesticides

• By dumping more chemicals into the water sources

• By using sustainable farming practices and properly managing fertilizers and pesticides