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3 years ago

Match the environmental remedlation method to Its description.

Physics

1 answer:

Bas_tet [7]3 years ago

4 0

Answer:

1. Soil vapor extraction - 3

2. Air sparging - 1

3. bioventing - 4

4. Natural attenuation -2

Explanation:

Soil vapor extraction - Soil vapor extraction (SVE) is the method in which perforated pipes are used into the soil and air is injected through the pipes. Contamination in soil then removed through perforation in pipes and disposed into an off-gas treatment unit.

Air sparging - In air sparging process air is injected in bubble form that remediates groundwater by volatilizing contaminants and enhancing biodegradation.

Bioventing - In bioinventing process low air flow rates are used that provide enough oxygen to sustain microbial activity in the soil and remove other contamination form the soil.

Natural attenuation - Natural attenuation is a natural process of environmental remediation which reduce the toxicity, mass, or concentration of contaminants in soil without human intervention.

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As velocity moves with constant velocity of 3.5 m/s, therefore we can use formula

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From above substituting t,

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3 years ago

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masha68 [24]

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faust18 [17]

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3 years ago

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They watch 240 minutes of TV per day. Now, let's calculate how many minutes they watch per year. We will use the conversion factor 1 year = 365 day.

240 min/day × (365 day/year) = 87600 min/year

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4 years ago

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Lena [83]

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