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Environmental Engineering in CE

Environmental Engineering in CE
The pH value of oxidised sewage is about

1.8
7.3
6.2
13.4

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Environmental Engineering in CE
What is the major constituents of waste/polluted water discharged from textile, pulp & paper, tanning, distillary, dairy and meat packing industries?

Radioactive substances
Inorganic pollutants
None of these
Natural organic products

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Environmental Engineering in CE
Polyvinyl chloride containers are not suitable for storing

None of these
Foodstuffs
Woolen clothes
Metallic powder

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Environmental Engineering in CE
TLV of aldrin in public water supply system is about __________ μg/litre.

357
0.5
1097
17

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Environmental Engineering in CE
A considerable part of the harmful ultraviolet radiation of the sum does not reach the earth surface, because of the fact that, there is a layer of __________ high above earth's atmosphere, which absorbs it.

Ozone
None of these
Carbon dioxide
Hydrogen

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Environmental Engineering in CE
Pick out the wrong statement pertaining to 'green house' for the plants.

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