Attack of asthma in certain persons may be due to
Exposure to cold temperature
Inhalation of some air borne pollen
Eating of some seasonal vegetables
Low concentration of CO2 due to increased rate of photosynthesis
Additional Questions
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Non-Ionizing radiations with specific biological effects are |
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Ozone day is observed on |
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A chemical harmful released by Chlorofluorocarbon to ozone is |
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Ozone hole is largest over |
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Peeling of Ozone umbrella, which protects us from UV rays, is caused by |
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Fish die in water polluted by sewage due to |
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Ozone layer of upper atmosphere is being destroyed by |
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Noise pollution is measured in |
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Acid rain is caused by increase in the atmospheric concentration of |
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In an area where DDT had been used extensively, the population of birds declined significantly because |
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