Premise: Cloud cover ( also known as cloudiness , cloudage or cloud amount ) refers to the fraction of the sky obscured by clouds when observed from a particular location . Glacier . Because glacial mass is affected by long-term climatic changes , e.g. , precipitation , mean temperature , and cloud cover , glacial mass changes are considered among the most sensitive indicators of climate change and are a major source of variations in sea level .
Hypothesis: Glacier is affected by the fraction of the sky obscured by clouds when observed from a particular location.
Label: NEUTRAL