Which of the following is a correct example of global warming creating a positive feedback

Which of the following is a correct example of global warming creating a positive feedback?

Multiple Choice

  • Ice has a higher albedo than water so replacing ice with water causes the surface to warm.
  • Ice has a lower albedo than water so replacing ice with water causes the surface to warm.
  • More water evaporating will create more low level clouds causing the surface to warm.
  • Less water evaporating will create more low level clouds causing the surface to warm.

Answer

Answer)

"Ice has a higher albedo than water so replacing ice with water causes the surface to warm and More water evaporating will create more low level clouds causing the surface to warm" are exmples of postive feedback.

Basically positive feedback is just opposite to negative feedback. In positive feedback the output of any action Drives it further toward one extreme that occur in a feedback loop. While some other examples of positive feeedbacks are like Warming oceans release more water vapor, Exponential population growth.

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