Final answer:
The interaction between the cryosphere and hydrosphere that involves the release of fresh water into ocean water as icebergs melt is an example of an interaction between these two spheres.
Step-by-step explanation:
The interaction between the cryosphere and the hydrosphere is specifically concerned with the movement of water in its solid form, such as ice, interacting with the liquid water. Among the given options, the one that represents this interaction is the release of fresh water into ocean water as icebergs melt. This phenomenon impacts the salinity and the temperature of the ocean water, which is crucial in oceanic currents and the global water cycle.
Regarding the other options, evaporation of water from oceans at the equator mainly involves the hydrosphere and atmosphere. Decomposition of organic matter at the bottom of oceans primarily relates to the biosphere and hydrosphere. Lastly, release of large amounts of salt from icebergs into the ocean is incorrect as icebergs are formed from fresh water.