In very early human history, complex sanitation systems were not needed because settlements were usually very small, like the village shown below.
however, as cities became larger and population densities increased, one major advancement was the development of which to channel wastewaters away from human populations more effectively than in the past.
a.
fountains
b.
water towers
c.
sewer systems
d.
dams

answer:

i lost in getting someone back.

i learned that people are really two-faced and no matter how angelic someone appears they always have a devil side and that you cant trust anyone anymore no matter how dear they are to you.

if your wondering who it waz it waz mah still miss her tho

~batmans wife dun dun

answer: copyright is extremely important to authors because it constitutes the ownership of one's original work. having ownership means you can protect your work as intellectual property and control who makes money from it—which is you and those to whom you assign rights.

i believe a micean that strips wood

in a

Explanation:

i do wood arts

Explanation:

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