Cell membrane - 5
Chloroplast - 6
Ribosome - 9
Nucleus - 4
Cell wall - 2
Mitochondria - 3
Lysosome - 7
Endoplasmic reticulum - 1
Vacuole - 8
The main process of preliminary treatment is the removal of coarse solids and other large materials found in raw wastewater.
Explanation:
The preliminary treatment is used to protect operation of wastewater treatment plants. This is done by removing from wastewater any things that damage pumps, or interfere with subsequent treatment process.
The treatment process include coarse screening, grit removal, and used to remove excess amount of oils and greases.
Wastewater screening is the first operation used at wastewater treatment plants. In this process the object such as rags, paper, plastics and metals are removed to prevent damage and clogging of downstream equipment, piping. The modern treatments use both coarse screens and fine screens.
I think the answer is A. Hope this helped
Answer:
The correct answer is B)
Explanation:
According to discovering made in relation to evolution, the Australopithecus Africanus (discovered in 1924), the Australopithecus Garhi (discovered in 1990), and the Homo Habilis (discovered in 1960) all shared the same period - 2.5-1.0 MYA.
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The answer her is <span>constitutive. </span><span />
