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In the graph below, the concentration of a particular pollutant in a lake is plotted over (alternate) days of a month in winter (average temperature 10 °C) and a month in summer (average temperature 30 °C) Consider the following statements based on the data shown above: i) Over the given months, the difference between the maximum and the minimum pollutant concentrations is the same in both winter and summer. ii) There are at least four days in the winter month such that the pollutant concentration on those days are within 1 ppm of the pollutant concentrations on the corresponding days in the winter month. Which one of the following options is correct?
A pollutant P degrades according to first order kinetics. An aqueous stream containing P at 2 kmole/m3 and volumetric flow rate 1 m3/h requires a mixed flow reactor of volume V to bring down the pollutant level to 0.5 kmole/m3. The inlet concentration of the pollutant is now doubled and the volumetric flow rate is tripled. If the pollutant level is to be brought down to the same level of 0.5 kmole/m3, the volume of the mixed flow reactor should be increased by a factor of
Which of the following is an inorganic gaseous pollutant of air ?
Which of the following is not a gaseous air pollutant?
Which of the following can be used for controlling Gaseous Air Pollutant?
In MPFI-Air Induction System, the air cleaner, the air flow meter, the throttle body and the air valve supply a proper amount of air to the air intake chamber and intake manifold.
Suppose saturated polar air has an air temperature and dew point of -10o C, and unsaturated desert air has an air temperature of 35o C and a dew point of 10o C. The desert air contains ______ water vapour and has a ________ relative humidity than the polar air.
In the following question, sentences of a paragraph have been jumbled and labelled as A, B, C and D. You are required to rearrange the jumbled sentences of the paragraph and mark your response accordingly by selecting the correct option. A: Thus air pollution affects both plants and animals. B: Air pollution occurs when harmful or excessive quantities of substances are introduced into the Earth's atmosphere. C: It may cause diseases, allergies, and even death to humans; it may also cause harm to other living organisms such as animals and food crops and may damage the natural or built environment.  D: Sources of air pollution include gases (such as ammonia, carbon monoxide, sulfur dioxide, nitrous oxides, methane, and chlorofluorocarbons), particulates (both organic and inorganic), and biological molecules.
The circulation and movement of soluble inorganic matter (nutrients) derived from sedimentary and atmospheric phases and reservoirs through organic phase of various biotic components and finally their return to inorganic phase is collectively called:
Which of the following is an inorganic pollutant?