Question

Scientists used to believe that all ecosystems obtained energy from the sun. But, small vents on the ocean floor emit hot, mineral-rich water from beneath the crust. No sunlight reaches these depths. But in the 1970s scientists found ecosystems thriving near the vents. How might scientists have modified their original theory regarding ecosystems and energy?

Answer 1

You have to write that as a sentence?

Answer 2

Yes @AloneS