Chemical Engineering - Environmental Engineering
Exercise : Environmental Engineering - Section 6
21.
Presence of __________ bacteria in water causes disease like typhoid.
22.
CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozones.
23.
Green house gases blanket/block the infrared radiation from earth's surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect ?
24.
A 'body' which allows the short wavelength incoming solar radiation to enter in, but does not allow long wave length outgoing infra red radiation to escape out is called the
25.
Fresh domestic sewage is __________ in color.
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