He observed many plants thriving in the searing soil despite these intense conditions. Rodriguez wondered how these plants were able to flourish in such extreme temperatures while other plants in similar or milder environments perish.
The heat they generate is the answer because the geothermal vents generate heat, since these vents generate a lot of heat which usually would have made it hard for plants to survive.
These geothermal vents have been known to release pressures that have been built up over time I'm the form of steam and really hot water. The article from which this question was drawn, goes on to say that the temperature of the ground around areas with the vents can go up to more than 150 degrees fahrenheit. The heat condition of this place was what made Rusty Rodriguez to wonder how plants were still able to survive in the soil.
So the answer is the heat they generate, since these vents generate great heat which normally would have made it difficult for plants to survive.
The correct answer to this question is letter "d: humans did not try to make fire." The statement that the author mean by "... nature had to kindle all the fires, for man by his own effort was unable to produce a spark" is that <span>humans did not try to make fire.</span>
