A) when your body temperature drops below 98.6°F B) where there is too much dissolved oxygen in water C) where there is not enough dissolved oxygen in the water to support local organisms D) when your veins and arteries constrict to prevent heat loss E) a disease affecting fish, often caused by pollution A) when your body temperature drops below 98.6°F B) where there is too much dissolved oxygen in water C) where there is not enough dissolved oxygen in the water to support local organisms D) when your veins and arteries constrict to prevent heat loss E) a disease affecting fish, often caused by pollution

A) a storage facility for groundwater. B) an area of land over which rain and other sources of water flow to drain into a body of water. C) the area in which people dig drinking water wells. D) where a river meets the ocean. E) the evaporation of river water. A) a storage facility for groundwater. B) an area of land over which rain and other sources of water flow to drain into a body of water. C) the area in which people dig drinking water wells. D) where a river meets the ocean. E) the evaporation of river water.

Exam 15: Water Pollution- Into the Gulf: the Makings of a Dead Zone, Far Upstream- Food Resources

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Point source pollution describes pollution sources that are always located immediately next to the contaminated water, thus making them easy to identify.

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Question 1

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False

Why should we care about water pollution?

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Water pollution is the addition of any substance, caused by humans or not, to a body of water that might degrade its quality. Water pollution affects many aspects of the ecosystem. Organisms that live in the affected water area may not be able to survive the pollution, especially if it is a toxic chemical. If some organisms are directly affected, this likely indirectly affects many more (for example, a food source may go away or the waters may be inhospitable for mating, etc.). If the pollution is really bad, it may cause that ecosystem to collapse entirely, which, as we know from previous chapters, is not good for the overall biodiversity of the planet. Water pollution can also directly affect the humans that depend on that body of water for drinking, cooking, bathing, and day-to-day activities. Many pathogens can be found in polluted waters, making the water unsafe for drinking or bathing. Water pollution also affects the ecosystem services of the polluted, and sometimes non-polluted, areas.

If water flows more slowly through watershed areas, will this increase or decrease the amount of pathogens found in the water that eventually flows into the ending river or lake?

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By flowing more slowly through the watershed, the water will be filtered to a higher extent by the soil and sentiment, thus reducing the amount of pathogens ending up in the river or lake.

What is hypoxia?

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Question 4

Which causes of water pollution are due to human activity?

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Question 5

Infographic 15.4, -In Infographic 15.4, the relationship between the amount of nitrogen fertilizer used and the size of the Gulf hypoxic zone is shown. In 2000 there is a decrease in the size of the hypoxic zone. What caused this decrease, and why would it have an effect on the size of the hypoxic zone?

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Question 6

Where can pollutants from a watershed end up?

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Question 7

If eutrophication leads to the abundance of nutrients plants need to grow and survive, why is it considered a bad thing?

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Question 8

Why is the prevention of soil erosion one of the best management practices to reduce the amount of pollution being delivered to the Mississippi River?

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Question 9

A watershed is:

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Question 10

What do healthy riparian areas provide?

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Question 11

Infographic 15.7. -Choose three strategies from the Gulf of Mexico Regional Ecosystem Restoration plan in Infographic 15.7. Explain what the goals of those strategies are and, if implemented, how the strategies will help reach those goals.

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Question 12

The switch to growing foods that leak nitrogen into the soil has resulted in:

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Question 13

Which is likely the easiest problem to address concerning increased nitrogen pollution?

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Question 14

Air pollution can cause water pollution.

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Question 15

The end result of eutrophication is:

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Question 16

Increased nutrient pollution, when compared to previous years' levels, is due to a single factor.

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Question 17

What do drainage pipes drain off farms?

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Question 18

The difference between point source and nonpoint source pollution is that:

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Question 19

-According to this graph showing nitrogen losses under two different farming methods, farmers should only use alternative methods to reduce nitrogen loss during _______ rainfall years.

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Question 20

Showing 1 - 20 of 38

Exam 15: Water Pollution- Into the Gulf: the Makings of a Dead Zone, Far Upstream- Food Resources

Point source pollution describes pollution sources that are always located immediately next to the contaminated water, thus making them easy to identify.

Why should we care about water pollution?

If water flows more slowly through watershed areas, will this increase or decrease the amount of pathogens found in the water that eventually flows into the ending river or lake?

What is hypoxia?

Which causes of water pollution are due to human activity?

Where can pollutants from a watershed end up?

If eutrophication leads to the abundance of nutrients plants need to grow and survive, why is it considered a bad thing?

Why is the prevention of soil erosion one of the best management practices to reduce the amount of pollution being delivered to the Mississippi River?

A watershed is:

What do healthy riparian areas provide?

Infographic 15.7. -Choose three strategies from the Gulf of Mexico Regional Ecosystem Restoration plan in Infographic 15.7. Explain what the goals of those strategies are and, if implemented, how the strategies will help reach those goals.

The switch to growing foods that leak nitrogen into the soil has resulted in:

Which is likely the easiest problem to address concerning increased nitrogen pollution?

Air pollution can cause water pollution.

The end result of eutrophication is:

Increased nutrient pollution, when compared to previous years' levels, is due to a single factor.

What do drainage pipes drain off farms?

The difference between point source and nonpoint source pollution is that:

-According to this graph showing nitrogen losses under two different farming methods, farmers should only use alternative methods to reduce nitrogen loss during _______ rainfall years.

Environmental Literacy and the Goal of Sustainability - on the Road to Collapse: What Lessons Can We Learn From a Vanished Viking Society

Science Literacy and the Process of Science- Science and the Sky: Solving the Mystery of the Disappearing Ozone

Information Literacy:toxic Bottles on the Trail of Chemicals in Our Everyday Lives- Human Populations and Environmental Health

Human Populations- One Child China Grows Up: a Country Faces the Outcomes of Radical Population Control

Environmental Health- Eradicating a Parasitic Nightmare: Human Health Is Intricately Linked to the Environment- Consumption and the Environmental Footprint

Ecological Economics and Consumption- Wall to Wall, Cradle to Cradle: a Leading Carpet Company Takes a Chance on Going Green

Managing Solid Waste- a Plastic Surf: Are the Oceans Teeming With Trash- Ecology

Ecosystems and Nutrient Cycling- Engineering Earth: an Ambitious Attempt to Replicate Earths Life Support Systems Goes Awry

Population Ecology- the Wolf Watchers: Endangered Gray Wolves Return to the American West

Community Ecology- What the Stork Says: a Bird Species in the Everglades Reveals the Intricacies of a Threatened Ecosystem- Biodiversity and Evolution

Evolution- a Tropical Murder Mystery: Finding the Missing Birds of Guam

Biodiversity- Palm Planet: Production of a Common Household Ingredient Is Wreaking Havoc on Wildlife Across the Globe

Reserving Biodiversity- a Forest Without Elephants: Can We Save One of Earths Iconic Species- Water Resources

Freshwater Resources- Toilet to Tap: a California County Is Employing a Controversial Method to - Supply Drinking Water

Feeding the World - a Gene Revolution: Can Genetically Engineered Food Help End Hunger

Agriculture- Farming Like an Ecosystem: Creative Solutions to Feeding the World- Conventional Energy: Fossil Fuels

Coal- Bringing Down the Mountain: in the Rubble, the True Costs of Coal

Oil and Natural Gas- the Bakken Oil Boom: Is Our Next Big Fuel Source Our Dirtiest- Air Pollution: Consequences of Using Fossil Fuels

Air Pollution- the Youngest Scientists: Kids on the Frontlines of Asthma Research

Climate Change- When the Trees Leave: Scientists Grapple With a Shifting Climate- Alternatives to Fossil Fuels

Nuclear Power - the Future of Fukushima: Can Nuclear Energy Overcome Its Bad Rep

Sustainable Energy for Stationary Sources- Fueled by the Sun: a Small Island Makes Big Strides in Renewable Energy- Sustainable Living in Community

Urbanization- the Ghetto Goes Green: in the Bronx, Building a Better Backyard

Environmental Policy

Counterfeit Cooling: in the Global Effort to Thwart Climate Change, Some Lessons Are

Learned After the Fact

Optional Chapters Available in Launchpad

Mineral Resources and Mining

Rare Earth Elements: a Bevy of Unfamiliar Minerals Are Crucial for Our Everyday

Technologies-But They Come With a Slew of Problems- Soil and Grassland Resources

Restoring the Range: the Key to Recovering the Worlds Grasslands May Be a Surprising One

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