Vulpes vulpes is the scientific name of the red fox species
The correct answer would be D- lunar.
Option D is the only <span>source of energy that in not currently used to produce electricity in our homes. Researchers are creating lunar panels (similar to solar panels) but there are </span>obstacles to large-scale energy production.
The moon can generate electricity, but for now it's just not accessible.
what are you trying to ask?
There are many different factors, but some are: the amount of natural resources (food, water, etc.), amount of predator/prey, and availability of shelter.