Question
$\mathrm{SO}_{2}$ is a dangerous air pollutant and harms plant life. What changes in the plant indicate its toxic effects?(a) falling of leaves(b) bleaching of leaves(d) withering of leaves(c) darkening of leaves
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In this case, the pollutant is sulfur dioxide (SO2), which is known to be harmful to plant life. Show more…
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Water soaked appearance of leaves due to sulphur dioxide pollution is caused by. A. Destruction of chlorophyll B. Damage to membranes C. Both A and B D. Corrosive action over metals
The false statcment among the following is (a) The loss or reduction of chlorophyll in the leaves is termed as chlorosis. (b) The loss or reduction of chlorophyll in the leaves is due to bleaching by $\mathrm{SO}_{2}$ (c) Growing more trees helps to increase $\mathrm{CO}_{2}$ in environment. (d) $\mathrm{SO}_{2}$ is a dangerous air pollutant and harms plant life by bleaching leaves.
Harmful effects of air pollution depends on (a) Concentration of pollutants (b) Duration of exposure (c) Type of organism (d) All of these
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