Related Questions

A powerful eye irritant present in smog is
A Nitric oxide
B Sulphur dioxide
C Peroxyacetyl nitrate
D Carbon dioxide
Which of the following emissions in the exhaust gas of an I.C. engine causes the formation of photochemical smog?
A Nitrogen oxides
B Hydrocarbons
C Both A & B
D Carbon monoxide
Which of the following pollutants is the major contributor to photochemical smog?
A Peroxynitrates
B Hydroperoxides
C Nitrogen dioxide
D Ozone
Which of the following group of gases cause photochemical smog?
A Ozone, PAN and CO
B HC, NO and PAN
C O2, PAN, and NO2
D O3, PAN and NO2
নিম্নলিখিত কোন গ্যাস photochemical ধোয়াসার (smog) জন্য দায়ী নয়?
A Hydrocarbon
B O3
C NO2
D CFC
Photochemical smog is formed from automobile exhaust
A By reaction of hydrocarbon & nitric oxide in presence of sunlight
B Appears only on sunny days
C Is harmful for crops and trees also besides causing eye irritation & asthma
D All of the above
Sooty and sulphurous smog formed due to combustion of fossil fuels particularly in winter, continues throughout the day and night. When the moist atmospheric air's water vapor condenses on the solid particles of smoke thereby forming smog (smoke + fog), it causes
A Poor visibility due to sky darkening
B Irritation in eyes
C Respiratory trouble
D All of the above
The antonym of 'IRRITANT' is ____.
A pleasing
B comfortable
C satisfaction
D gratify
May physician has told me that stomach ulcres are "not caused by stress ,alcohol,or rich foods" but a bacterium that dwells in the mucous lining of the stomach.(Match the best alternative that correspond to the quotations word)
A Not caused by stress ,alchol, or rich foods, but
B Not caused by stress ,alchol, or rich foods or but
C Caused not by stress,alchol,or rich foods but by
D Caused not by stress,alcohol and rich foods but
Mucous secreting glands are
A Bartholin’s gland
B Bulbourethral gland
C Buccal glands
D Corpus luteum
E Parotid gland

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