Question

plz give me the answer in the with numerous

Answer 1

.$\red{Aeration}$
Aeration is the process by which air is circulated through, mixed with or dissolved in a liquid or substance.
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.$\blue{contaminant}$
a polluting or poisonous substance that makes something impure.
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.$\pink{Sewerage}$
Sewerage is the infrastructure that conveys sewage or surface runoff using sewers.(drainage system)
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.$\green{aerobic\:bacteria}$
An aerobic organism or aerobe is an organismthat can survive and grow in an oxygenatedenvironment.
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.$\red{Sanitation}$
conditions relating to public health, especially the provision of clean drinking water and adequate sewage disposal.
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.$\blue{Sludge}$
thick, soft, wet mud or a similar viscous mixture of liquid and solid components, especially the product of an industrial or refining process.
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.$\pink{ anaerobic \:respiration}$
Anaerobic respiration is respiration using electron acceptors other than molecular oxygen. Although oxygen is not the final electron acceptor, the process still uses a respiratory electron transport chain. 
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.$\green{Sewage}$
waste water and excrement conveyed in sewers.
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.$\red{waste\:water}$
water that has been used in the home, in a business, or as part of an industrial process.
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$\blue{Biogas}$
gaseous fuel, especially methane, produced by the fermentation of organic matter.
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.$\pink{Sewer}$
an underground conduit for carrying off drainage water and waste matter.
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Answer 2

because you are hands are dance so hop you like it plz make me brilliant OK plz plz OK fast plz plz plz plz