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Bas_tet [7]
2 years ago
9

Which event happened first in earths evolution on the geologic time scale?

Geography
1 answer:
BabaBlast [244]2 years ago
4 0
The answer is C A ball of dust, ice, and rock was pulled together by gravity.Oct 10, 2018
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Describe the effect of untreated wastewater on the chemical, physical and biological quality of urban streams or rivers.
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Answer:

<u>Waste water is any water that is affected by human use and is combination of all domestic, industrial and agricultural stuff</u>s.

Explanation:

  • It can be also called as the stormwater or surface runoff, or sewer infiltration. This type of water can include the domestic wastes involved in households like toilet flushes, dishwashers, washing machines, and detergents. This type of water in developing countries if often treated with septic tanks, drain fields, and onsite sewage systems.
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