<span>Effluent is a water that is returned to the environment after secondary treatment. It is a liquid waste that is discharged in the sea or river. It is also termed as a water that is treated or not which passes a sewer and treatment plant.</span>
Liter is correct because that’s the metric system. You have milliliter, centiliter, deciliter, kiloliter
You don’t get that with the English system of gallon
When sound waves hit a solid surface they either reflect, refract, or absorb.
Echo's are caused by the reflection of sound waves.
The radiation from the sun
Because some species don't have a gender, therefore they have both make and female parts and are able to reproduce asexually.
I think.. heh.
