Answer:
The following statement concerning glaciers that is NOT true is Long extended, alpine glaciers occupied valleys in most high, mountainous areas in the United States, Canada, and Europe at one or more times during the past two million years.
Explanation:
The other statements are correct. Ice sheets (>50,000 km2) are larger than ice caps (<50,000 km2). Piedmont glaciers is a valley glacier. The Volume of the Antarctic ice sheet is about the same as the total discharge of the Amazon river in one year.