Answer:
Agree
Step-by-step explanation:
The deep-sea vent ecosystem gets energy storage molecules without sunlight. Life in the vent ecosystem relies on alternate energy through the use of hydrogen sulfide present in the water emanating from the vent.
The producers that form the basis of the food chain are bacteria that use the hydrogen sulfide to create energy-rich molecule in a process known as chemosynthesis.
The equation of the chemosynthesis is as below:
![CO_2 + 4H_2S + O_2 --> CH_20 + 4S + 3H_2O](https://img.qammunity.org/2021/formulas/chemistry/high-school/7skzvhdcwpbgd70v1lx8frmetbwp128owb.png)