In 1977, oceanographers exploring the Galapagos Rift made a startling discovery. Deep on the ocean floor, where no sunlight could penetrate, they found hydrothermal vents spewing superheated, mineral-rich water. Instead of finding a barren wasteland, they observed thriving ecosystems teeming with giant tube worms, blind crabs, and vast colonies of bacteria. These organisms did not rely on photosynthesis; instead, they survived on chemical energy through a process called chemosynthesis.
The writer wants to add a concluding sentence to the paragraph that wraps up the discussion of chemosynthesis and reinforces the main idea of the passage (that this discovery revealed a new way life can thrive without sunlight). Which of the following sentences best accomplishes this goal?
- This ground-breaking discovery proved that diverse life could flourish in the absolute darkness of the deep ocean.Cevap
- BHydrothermal vents are also found in the Atlantic Ocean, where scientists plan to conduct more studies in the future.
- CHowever, these ecosystems are very delicate, they can be easily disrupted by deep-sea mining.
- DTherefore, scientists will continue to study these vents and learned more about chemosynthesis.