What’s the advantage of using solar energy instead of energy from fossil fuels

Solar energy is a renewable form of energy. Meaning, so long as the sun exists, we will not run out of sunlight to power our homes, cars, and other possessions. Fossil fuels, on the other hand, are nonrenewable resources. Once we have used up the Earth’s fossil fuel stores, that’s all we have. They will technically replenish themselves, but it will take millions of years to do so. By that time, it will be too late to use them.

"a.) well–developed vascular system."

no i don't feel that humans have oversubscribed some medications