Ecology Cycles

Using the graph, what are the repercussions of this trend on the environment?

• Decreased sedimentation in benthic zones

• Overall changes in climate patterns around the world, including more severe weather events.

• Increased growth of vegetation on a global scale.

• Growth of ice coverage over most of the Earth

• Global cooling

Tags

NGSS.MS-ESS3-4

NGSS.MS-ESS3-5

Burning fossil fuels coupled with deforestation increases the amount of ___________________ in the atmosphere.

• Nitrogen oxides

• Carbon dioxide

• Sulfur dioxide

• Ozone

• All of the above is/are correct

Tags

NGSS.MS-ESS3-4

NGSS.MS-ESS3-5

Which of the following statements about the role of carbon dioxide in the carbon cycle is TRUE?

• I only

• II only

• III only

• II and III only

• I, II and III only

Tags

NGSS.MS-LS2-3

How does the burning of fossil fuels contribute to the net increase in atmospheric carbon?

• Photosynthesis is reduced by virtue of increased smoke and haze.

• Carbon released by the burning is not in a form that can be readily absorbed by plants, leaving residual carbon in the atmosphere.

• Carbon that has been sequestered underground is added to the carbon cycling between the atmosphere and the biosphere.

• Carbon released by the burning is more easily absorbed in the atmosphere than that produced by natural means.

Tags

NGSS.HS-LS2-5

NGSS.HS-ESS2-6

Carbon sequestration, the long-term storage of carbon in plants, soils, geologic formations, and the ocean.

• True

• False

Tags

NGSS.MS-LS1-6

Ocean acidification represents a key component of the

• nitrogen cycle

• hydrologic cycle

• phosphorus cycle

• carbon cycle

• sulfur cycle

Tags

NGSS.HS-LS2-5

NGSS.HS-ESS2-6

Cultural eutrophication is a result of

• a mixing of multiple cultures in one area

• excess nutrients entering aquatic environments from sources such as sewage and fertilizers

• Excess nutrients entering aquatic environments from weathering rocks

• Genetic pollution

• Increasing vehicle traffic

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Nitrogen fixation is a necessary part of the nitrogen cycle because

• Atmospheric nitrogen cannot be used directly by organisms

• There is not enough nitrogen in the atmosphere

• Nitrogen needs to be combined with phosphorus

• Bacteria needs to be created to help with plant growth

• Nitrogen in the soil needs to be fixed to go back to the atmosphere

Tags

NGSS.MS-LS2-3

Which of the following elements is most likely to limit primary production in marine environments?

• Nitrogen

• Phosphorus

• Calcium

• Iron

• Cobalt

Tags

NGSS.HS-LS2-5

Which molecule is consumed during decomposition in an aquatic environment, potentially leading to a hypoxic (low-oxygen) situation?

• Nitrogen

• Phosphorus

• Calcium

• Carbon

• Oxygen

Tags

NGSS.MS-LS2-3