I would say science because it has lab exercises
A. Legally recongized member of a country
To stop using cars, stop making emissions, switch to greener means of energy. Plant a tree
Beauty is in the eye of the beholder means beauty isn't one specific thing and you cannot say something is 100% beautiful because when someone might find beautiful, another person may hate.
So yes, a dark cave can be beautiful to someone as a river might be to another.
