_____ 1. According to the USGS, about 69% of the Earth’s freshwater are stored in ice caps and glaciers. Which of the following statements about polar ice is not true?
a. ice caps reflect light and tend to prevent heat from being absorbed
b. melting glaciers can influence sea levels and surface water supplies
c. glaciers are formed rather quickly as water condenses out of the air
d. ice sheets can lose water through both evaporation and sublimation
_____ 2. When climate changes, glaciers respond by fluctuating in size. Which of the following human activities is, at the present time, most closely associated with global warming and climate change?
a. wetland destruction in coastal areas
b. burning fossil fuels for electricity
c. irrigating desert regions for agriculture
d. depletion of the ozone layer by pollutants
a. ice caps reflect light and tend to prevent heat from being absorbed
b. melting glaciers can influence sea levels and surface water supplies
c. glaciers are formed rather quickly as water condenses out of the air
d. ice sheets can lose water through both evaporation and sublimation
_____ 2. When climate changes, glaciers respond by fluctuating in size. Which of the following human activities is, at the present time, most closely associated with global warming and climate change?
a. wetland destruction in coastal areas
b. burning fossil fuels for electricity
c. irrigating desert regions for agriculture
d. depletion of the ozone layer by pollutants