Feedback Flashcards
1
Q
Define positive feedback
A
The change produces an effect which increases the original change
2
Q
Define negative feedback?
A
The change produced creates effects that aim to reduce or work against the initial change
3
Q
Provide an example of positive feedback
A
High velocity wind from intense storms causes lots of wind erosion which removes stabilising vegetation from the sand dunes. Consequently, more win erosion happens after the storm so the sand dune continues to decline
4
Q
Provide an example of negative feedback
A
When block fall mass movement takes place by erosion, the collapsed debris acts as a barrier and prevents any further erosion of the cliff
