Glacier Retreat (South Cascade Glacier, USA)

Question 1

Where

Answer 1

Washington State, USA

Question 2

Special because

Answer 2

One of the 3 benchmark glaciers which are monitored by United States Geological Survey for over 40 years

Question 3

Data from USGS

Answer 3

Collected from stream run off, air temperature and mass balance

Question 4

All 3

Answer 4

Benchmark glaciers have been shown to retreat which show global warming