Final answer:
Nitrogen fixation through lightning does not require bacteria. Bacteria are involved in biological nitrogen fixation, but lightning is an abiotic process.
Step-by-step explanation:
Nitrogen fixation through lightning does not require bacteria. Lightning is an abiotic process that can transform nitrogen gas into nitrate, which plants can use. This process occurs when lightning strikes and is a physical process rather than a biological one. Bacteria are involved in biological nitrogen fixation, where they convert nitrogen gas into usable forms such as ammonia, but they are not involved in nitrogen fixation through lightning.