sewage system
Water quality standards are typically used to describe the acceptable amount of a harmful substance in fresh water. These standards are set by regulatory bodies to ensure that the water is safe for humans and the environment.
No, not harmful at all.
fresh
Yes, it is harmful in all forms.
air that is not fresh contains chemicals which are harmful to your lungs and other organs.
Some words to describe 'Cut Grass' are: Fresh, nice, and green.
fresh
"Brackish" water. "Urine" would also be a valid answer.
No. Water is called fresh simply when it does not have too much salt in it. Fresh water could still be contaminated with toxins or harmful organisms.
Fresh, clean, and invigorating.
Brackish.
Brackish, stale,