Final answer:
The correct statement regarding the interaction of two Earth's spheres is that the lithosphere and hydrosphere interact through volcanic activity. This interaction exemplifies the complex interconnectivity of Earth's systems, which includes the biosphere and atmosphere's relationship via processes like photosynthesis and respiration.
Step-by-step explanation:
The correct statement that identifies a mechanism by which two spheres interact is a) The lithosphere and hydrosphere interact through volcanic activity. This interaction is a component of the Earth's many complex systems that are constantly interacting with one another. Other interactions not correctly stated in the options include the biosphere and atmosphere through processes like photosynthesis and respiration, as well as the cryosphere and atmosphere through the albedo effect of ice and snow, which affects climate and weather patterns. Earthquakes, as mentioned in one of the options, do affect both the geosphere and the biosphere, but they are not an interaction; rather they are a process within the geosphere that can impact the biosphere.
Earth's systems such as the atmospheresphere, hydrosphere, cryosphere, lithosphere, and biosphere are all interconnected. The biosphere encompasses a wide range of ecological niches, from deep sea to high atmosphere, where life affects and is affected by the Earth's physical processes. Interactions between these systems can significantly affect climate, topography, and life on our planet. For instance, when volcanic activity occurs in the lithosphere and interacts with the hydrosphere, it can lead to the formation of new landforms as well as the alteration of water bodies' chemistry and temperature, affecting the ecosystems within.