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5 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What is solid waste? Elaborate |
1)Solid wastes are unwanted discarded materials. 2) They may contain a)Dust b)Ash 🌋 c)Paper 📃 d)Packings e)Purifiable matters such as Fruits 🥭 and vegetables🥦 3) They maybe products from houses🏘️ or industrial 🏭 or commercial and agricultural 🚜 operations. 4)They are called as litter in country side and refuse in cities. 🌁 |
Shani |
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What are the sources of air pollution? |
Industries ,Combustion ,vehicles and agriculture |
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What are the prevention and control measures of air pollution? |
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Explain chemical methods of purification of water in small scale |
It is done with : 1) Bleaching powder 2) Chloramine 3) Chlorine tablets 4) Iodine 5)Potassium permanganate but chemical disinfectants are not suitable for domestic use. |
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What are vitamins? Classify them |
Vitamins are essential nutrients required by the body in very small amounts. 1) Fat soluble vitamins : Vitamin A D E K 2) Water soluble vitamins : Vitamin b complex and Vitamin c |
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