When temperatures rise and glaciers melt, which spheres are most directly connected?

• A. Atmosphere and biosphere only
• B. Cryosphere and hydrosphere and geosphere
• C. Ozone layer and atmosphere only
• D. Hydrosphere and ozone layer only

Answer: (B)

When temperatures rise and glaciers melt, the immediate link is between the cryosphere and the hydrosphere. The cryosphere covers all frozen water, so melting ice transfers water into the liquid state that makes up the hydrosphere—in rivers, lakes, groundwater, and especially the oceans. This direct transfer changes how water is distributed across the planet and drives phenomena like sea-level rise.

The geosphere also feels the effects, because the loss of ice load can cause the land to rebound or settle and can alter erosion and sediment transport as meltwater reshapes terrain. But the most direct connection in this process is between frozen water and liquid water. The other options couple components (like the ozone layer or purely atmospheric or biospheric interactions) that are not the primary, immediate link when glaciers melt.