Oxides of nitrogen combine to form
Options
(a) photochemical smog (b) ozone (c) smoke (d) particulate matter
Correct Answer:
photochemical smog
Explanation:
Photochemical smog is grey or yellow brown opaque smog having oxidising […]
Ozone prevents the entry of
Options
(a) infrared rays (b) visible rays (c) UV rays (d) X-rays
Correct Answer:
UV rays
Explanation:
Ozone layer or shield is present in stratosphere which is also […]
Ozons (O₃) layer in stratosphere is effected by
Options
(a) CFC (b) excess of CO (c) excess of CO₂ (d) low rainfall
Correct Answer:
CFC
Explanation:
No explanation available. Be the first to […]
Protective layer of ozone in atomosphere exists in which layer?
Options
(a) troposphere (b) ionosphere (c) stratosphere (d) atmosphere
Correct Answer:
stratosphere
Explanation:
No explanation available. Be the first to write the explanation […]
SO₂ pollution affects
Options
(a) nucleus (b) mitochondria (c) ribosome (d) vacuole
Correct Answer:
mitochondria
Explanation:
SO₂ pollution affects the respiratory system mostly, thus it affects the mitochondria. Higher concentrations of SO₂ can […]
Some effects of sulphur dioxide and its transformation products on plants include
Options
(a) plasmolysis (b) protein dis-integration (c) Golgi body destruction (d) chlorophyll destructon
Correct Answer:
chlorophyll destructon
Explanation:
No explanation available. […]
Sound above what level is considered hazardous noise pollution?
Options
(a) above 80 dB (b) above 120 dB (c) above 150 dB (d) above 30 dB
Correct Answer:
above 80 dB
Explanation:
No […]
Sudden rustling of doors and windows is due to
Options
(a) sonic boom (b) earthquake (c) slipping of glaciers on nearby mountain (d) movements of crustal layers of earth
Correct Answer:
sonic boom
T. L. V. (Threshold Limit Value) of methyl isocyanate responsible for Bhopal gas tragedy is
Options
(a) 0.002 ppm (b) 0.02 ppm (c) 0.2 ppm (d) 0.005 ppm
Correct Answer:
0.02 ppm
Explanation: […]
The “world environment day” is on
Options
(a) 10th April (b) 5th June (c) 7th August (d) 28th February
Correct Answer:
5th June
Explanation:
No explanation available. Be the first to write the […]
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