Which ecosystem is the only one that does NOT thrive on solar energy?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Deep sea hydro-thermal ecosystem.
The deep-sea hydrothermal ecosystem is the only ecosystem that does not thrive on solar energy. Instead, it relies on chemosynthesis. In these ecosystems, such as those around hydrothermal vents, energy is derived from chemical reactions involving sulfur compounds and other minerals, rather than from sunlight. Marine organisms, phytoplanktons, and nitrogen-fixing bacteria typically depend on solar energy, either directly or indirectly, to support their energy needs and metabolic processes.