Which sentence provides direct evidence to support this claim?
The total amount of glacier cover is decreasing.

Glaciers are sheets of ice that have formed over geological time periods.

Published studies of satellite photos show 100 meters of glacier cover is lost each year.

Glacier cover on the planet is affected by increased human activity.

Climate change is not the only factor affecting the decline of glaciers.

Question

Which sentence provides direct evidence to support this claim?
The total amount of glacier cover is decreasing.

Glaciers are sheets of ice that have formed over geological time periods.

Published studies of satellite photos show 100 meters of glacier cover is lost each year.

Glacier cover on the planet is affected by increased human activity.

Climate change is not the only factor affecting the decline of glaciers.

anonymous · Answer

The 2nd one: Published studies of satellite photos show 100 meters of glacier cover is lost each year.

eclipsedstar · Answer

B. 
It says "Published studies of satellite photos...each year", which affirms that the glacier cover is decreasing anually, while the oher choices do not show enough evidence in how they came to those conclusions.