Human Impacts on the Environment

Which statement about the effects of natural events and human activities is true?

• The environment is not usually affected by natural events.

• All human activities change the environment in a negative way.

• Natural events always have a positive impact on the environment.

• Human activities and natural events can damage the environment.

The greenhouse effect affects life on Earth by

• trapping oxygen
• cooling the temperatures
• trapping warmth
• recycling nitrogen

Tags

NGSS.MS-LS2-4

Which member of the food chain is MOST affected by mercury, a fresh water pollutant?algae --> zooplankton--> small fish --> large fish --> hawk

• algae
• zooplankton
• large fish
• hawk

Tags

NGSS.MS-LS2-4

The process of changing free nitrogen into a form that organisms can use them.

• nitrogen formation
• nitrogen fixation
• climate change
• nitrification

Measurements of carbon dioxide correlates fairly closely with the measurements of _____________

• oxygen
• temperature
• nitrogen
• water

Tags

NGSS.HS-ESS2-6

NGSS.HS-LS1-7

NGSS.HS-LS2-5

The build up of toxins in the upper levels of a food chain is called

• autrophism
• biomagnification
• heterotrophy
• respiration

Tags

NGSS.MS-LS2-3

Eutrophication is caused by

• runoff of excessive fertilizer and nutrients
• cleaning up waterways
  
• using nuclear energy
• using solar energy

Tags

NGSS.HS-ESS3-4

NGSS.HS-LS2-6

NGSS.HS-LS2-7

When excess nutrients make their way into the waterways,

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

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Increases in global temperature is caused by

• aerosols/CFC's
• carbon dioxide, methane, and water vapor
• nitrogen
• hydrogen

Tags

NGSS.MS-ESS3-5

The rapid growth of algae in bodies of water produces a condition called ___.

• nutriphication
• eutrophication
• nullification
• transpiration

Tags

NGSS.HS-LS2-2