Human Impact on the Environment

Does this picture show consumption or conservation?

• consumption

• conservation

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NGSS.MS-ESS3-4

Does this picture show consumption or conservation?

• consumption

• conservation

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The contamination (or messing up) of air, land, or water is called:

• energy

• pollution

• natural resource

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This polar bear is on a small piece of ice. What is causing this?

• global warming

• exporting of goods

• he's an entrepreneur

• consumption of ice

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Algae grow rapidly when certain nutrients are added to the water supply causing an algal bloom. Eutrophication describes the process of adding nutrients to the water supply. What human activity is most responsible for the eutrophication that leads to algal blooms?

• Burning fossil fuels

• Disposing of pesticides

• Fertilizer for food crops

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A coal-burning facility is constructed in an area containing several pond ecosystems. How will this human activity most likely affect the pond ecosystems?

• More nutrients will be available.

• Organism diversity will increase.

• Disease will become less common.

• Water quality will be reduced.

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The following map shows four cities along the United States coast. Recent water samples were taken at each of these locations in response to a diminishing fishing industry. Results from each water sample are listed in the data table below. Based on the results, what is a reasonable conclusion about human use of fertilizers and its impact on ocean ecosystems?

• Increased fertilizer use appears to have a positive effect on marine fish species.

• Increased fertilizer use appears to have a negative effect on marine fish species.

• Based on the data, the harbor’s proximity to the equator has an effect on the number of marine fish.

• Based on the data, there is no connection between the amount of fertilizer used by humans and the number of marine fish.

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Removal of a forest or stand of trees, which are then used for nonforest purposes

• Reuse

• Deforestation

• Pollution

• Overpopulation

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Reforestation is the planting of trees that have been cut down by loggers and builders. One benefit of reforestation is restoring lost trees, which future generations can use for their wood. Which claim could be made about how reforestation could benefit a community?

• It limits the space available for building homes and business

• It decreases the chances of a forest fire spreading near people’s homes because of new tree growth

• It decreases the land available for growing crops and raising livestock

• It rebuilds forests, which provide shelter to animals, plants and other resources

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Why do neighborhoods and agriculture cause more pollution than forests and oceans?

• The animals living in or near the forest add pollution to the ocean.

• Decomposing plant matter increases pollution bacteria in the ocean.

• The higher elevation allows more pollution to accumulate and enter the ocean.

• Human activities create pollution runoff that enters the ocean.

Answer explanation

Human activities create pollution runoff that enters the ocean. Any where that humans are pollution is

Agriculture: Humans control raising animals and growing crop that disrupt ecosystems

Neighborhoods: Human litter and use chemicals that kill other living things

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