Final answer:
Life on Earth could have emerged from volcanic activity near deep-ocean vents or from the effects of lightning in the primordial soup.
Step-by-step explanation:
According to the hypothesis, life on Earth emerged from volcanic activity in the presence of large amounts of gases seeping from deep-ocean vents.
Another hypothesis, called the primordial soup, suggests that the formation of life was due to the effects of lightning in Earth's atmosphere.