How can modern human activity continue without fossil fuels?
30 POINTS

By using clean, renewable energy

Explanation:

If humans converted directly over to renewable energy, like solar or wind energy, then there would be no need for fossil fuels.

I'm not quite sure what the question is asking, but I'll do my best.

Explanation:

Fossil fuels isn't the only source of energy. Renewable resources can also be utilized. There are lots of home improvements, like geothermal heating using the heat in the ground to heat your house, solar panels, that kind of stuff. There's also fuel alternatives that use biomass and bio fuels, especially from algae, surprisingly. Electricity can continue with wind turbines, hydroelectric systems, solar panels, there are countless ways that activity can continue.

answer: b: experiments that showed that all cells are similar in how they metabolize and in their composition

explanation: