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Photochemical Smog:
Photochemical smog, a secondary Pollutant, results when the two pollutants, nitrogen oxide and hydrocarbons found in automobile exhausts, react with one another in the presence of sunlight to produce nitrogen dioxide (N02), ozone (03) and a compound called PAN (Peroxylacetyl nitrate), which then appear as a yellowish brown haze. Breathing ozone affects the respiratory and nervous system. It causes respiratory distress, affects eye membranes and stimulates tears. It also causes headache. Ozone also damages rubber articles, textiles and discolours paintings. It has been recently found that smog is harmful to timber. PAN is especially damaging to plants. Plants exposed to PAN exhibit leaf mottling and
whose photosynthesis
Oil extraction : Extraction of oil from the prepared oilseeds can be done by one of the following methods: (i) traditional method: ghani, (ii) Improved methods:
why do all objects have a pull between each other
Simple hydraulic press The principle of the hydraulic press is illustrated by the following model. Half fill a cylindrical jar with water. Pour melted paraffin wax on the su
what is inertia?
Define Co-transport - Secondary Active Transport Determine If the two substances whose transport is coupled, move in similar direction, the phenomenon is known as co-transport
Explain the Spinal Nerves As mentioned earlier, there are 31 pairs of spinal nerves that leave the vertebral canal by passing through the intervertebral foramina formed by adja
Define the Functions of Cerebrospinal Fluid The CSF has many functions. These include the following: 1) It provides the optimum condition for a meaningful signal/stimulus. T
Stereo isomerism:- Stereo isomerism occurs when the same compound due to different spatial arrangement of the groups attached to its asymmetric carbon atom exists in m
INTRODUCTION : By doing this exercise, you will learn how to deal with emergency situations arising out of laboratory accidents. You are aware that a tense situation arises once a
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