Because the government cant tax it or tell it what to do.
but really, it's not considered property (ponds are) so you can't say "no trespassing" on a body of water, only the surrounding land. comment if you need more info
Relative humidity. A psychrometer has two thermometers, one for dry-bulb temperature and the other wet-bulb temperature.
It depends on what the question is, buddy
The right answer is the second one
Providing food water and shelter to local animals/ birds , clean and protect the enviroment ! hope this helps