Final answer:
Glaciers and ice sheets have exhibited an increase in mass or area since 1950 due to global warming.
Step-by-step explanation:
The components of the cryosphere that have exhibited an increase in mass or area since 1950 are glaciers and ice sheets.
Glaciers are large bodies of ice that form on land and move slowly downhill under the force of gravity. Since 1950, many glaciers around the world have retreated or shrunk in size due to global warming. This is evident in places like Glacier National Park in Montana, where the number of glaciers has decreased significantly.
Ice sheets, such as the Antarctic and Greenland ice sheets, have also experienced a decrease in mass since 1950. These ice sheets are massive bodies of ice that cover large land areas. The melting of ice from these sheets contributes to rising sea levels.