EXAMIANS
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.
YOUR ANSWER : ?
YOUR ANSWER : ?
Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by
YOUR ANSWER : ?
Carbon monoxide is a pollutant, which causes
YOUR ANSWER : ?
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?
YOUR ANSWER : ?
Maximum permissible concentration (i.e. TLV) of DDT in public water supply system is __________ micro gram (μ g)/litre.
YOUR ANSWER : ?
The amount of coagulant needed for coagulation of water increases with(i) Increase in turbidity of water(ii) Decrease in turbidity of water(iii) Increase in temperature of water(iv) Decrease in temperature of waterThe correct answer is
YOUR ANSWER : ?
Pick out the wrong statement pertaining to 'green house' for the plants.
YOUR ANSWER : ?
Threshold limit value (TLV) means maximum permissible/acceptable concentration. TLV of phosgene in air is about __________ ppm (parts per million).
YOUR ANSWER : ?
Which of the following is an adsorbant used for the removal of SO₂ from gas/air?
YOUR ANSWER : ?
Which of the following pollutants, if present in atmosphere is detectable by its odour?
YOUR ANSWER : ?