Earth Science Feedback Loops

Polar Ice Caps are melting due to an increase in Earth's temperature. This lowers the albedo of Earth, which in turn increases Earth's temperature. This is an example of what type of feedback?

• Negative

• Neutral

• Positive

• Ecosystem

Tags

NGSS.HS-ESS2-2

A ________________ feedback loop makes a system more stable.

• Positive

• Neutral

• Negative

• Circular

Tags

NGSS.HS-LS1-3

A wolf population is introduced into an ecosystem, causing the deer population to decrease. The wolf population decreases as the deer population decreases, allowing the deer to begin to increase again. This is an example of what type of feedback?

• Neutral

• Ecosystem

• Positive

• Negative

Tags

NGSS.HS-LS1-3

NGSS.HS-LS2-6

An increase in Carbon Dioxide levels in the atmosphere could lead to which of the following?

• Increase in temperature on Earth

• Decrease in Albedo on Earth

• Change in overall climate on Earth

• All of the above

Tags

NGSS.HS-ESS2-4

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

Why is the "albedo effect" considered a feedback loop?

• The albedo effect is a feedback loop because it leads to increased cloud cover

• The albedo effect is a feedback loop due to its impact on ocean currents

• The albedo effect is considered a feedback loop due to the relationship between surface warming, albedo reduction, and increased absorption of solar radiation.

• The albedo effect is a feedback loop because it causes hurricanes to form

Tags

NGSS.HS-ESS2-2

NGSS.HS-ESS2-4

NGSS.HS-ESS3-5

A positive feedback loop occurs

• when a system responds to a change by returning to its original state

• when feedback into a system decreases a rate of response

• when a system is in a steady state

• when feedback into a system increases a rate of response

A ________________ feedback loop makes a system more stable.

• Positive

• Neutral

• Negative

• Circular

A _________________ feedback loop moves a system to often become more extreme and unhealthy.

• Positive

• Neutral

• Circular

• Negative

Tags

NGSS.HS-ESS2-2

What is the relationship between the two systems in the graph?

• An increase in vertebrate extinctions is leading to an increase in human population.

• An increase in human population is leading to an increase in vertebrate extinctions.

• An increase in human population is leading to a decrease in extinctions.

• An increase in extinctions is leading to a decrease in human population.

Tags

NGSS.HS-LS4-5

What is one thing that could be causing this increase in acres burned by wildfires?

• An increase in precipitation

• A decrease in Carbon Dioxide in the atmosphere

• A decrease in Earth's temperature

• A decrease in precipitation overtime

Tags

NGSS.HS-ESS3-1

NGSS.HS-ESS3-5