Human Impact on the Environment

According to the population pyramid of this country, its population is most likely...

• growing slowly.
• growing rapidly.
• decreasing.
• not changing.

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NGSS.HS-LS2-1

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Which of these is a MAJOR cause of acid rain?

• spraying pesticides on crops
• burning fossil fuels for energy
• dumping sewage in river systems
• using uranium to generate electricity

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NGSS.MS-ESS3-4

In what process is Carbon transformed into chemical energy?

• Photosynthesis
• Respiration
• Primary Production
• Secondary Production

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NGSS.MS-LS1-6

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When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.

• Water
• Atmosphere
• Sun
• Air

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NGSS.MS-ESS2-1

Eutrophication is caused by

• excess nutrients building up in the water.

• industrial point-source pollution.

• unlined landfills and septic tanks.

• wastewater from homes mixing with drinking water.

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NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

NGSS.MS-LS2-3

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How does eutrophication cause the death of aquatic organisms

• the build up of carbon dioxide in the water

• the lack of nitrogen in the water

• the lack of carbon dioxide in the water

• the lack of oxygen in the water

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NGSS.MS-LS2-4

How can an algal bloom (eutrophication) lead to a decrease in dissolved oxygen? Select all that apply.

• Algae is a heterotroph and consumes more oxygen than it produces.

• Decreased light penetration limits photosynthesis below the surface.

• Bacteria consume oxygen as they decompose dead algae and other organisms.

• Decomposes that would have produced oxygen are outcompeted by algae.

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NGSS.MS-LS2-4

Which phrase describes how toxins concentrate in the highest level predators?

• bioaccumulation

• biotoxins

• biomagnification

• biopollution

When excess nutrients make their way into the waterways in runoff from lawns:

• fish populations increase
• algal blooms increase
• frog population increases
• people get more vitamins in their water

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

Invasive species alter the ecosystem by a___________in number quickly,this leads to _____ food for the native  species. 

• increasing  less
• decline  decreasing

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NGSS.MS-LS2-1

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