Question

Chemoautotrophs do not need

• A. $H_{2}S$
• B. Nitrite
• C. Ammonium compounds
• D. Sunlight

Answer 1

The correct option is D Sunlight

Chemoautotrophs are organisms that utilize inorganic compounds such as hydrogen sulfide, nitrite, iron compounds, ammonium compounds as the source of energy. Unlike photoautotrophs, which utilize sunlight, they use chemical energy. The example includes Nitrosomonas species.

Thus, the correct answer is 'Sunlight.'