Environmental Life Style
Maharashtra Board · Class 10 · Water Security
Flashcards for Environmental Life Style — Maharashtra Board Class 10 Water Security. Quick Q&A cards covering key concepts, definitions, and formulas.
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What is Earth Overshoot Day?
Answer
Earth Overshoot Day is the day when human consumption of natural resources for the year becomes more than what nature can regenerate in that year. For 2019, it was 27 July 2019.
Why is Earth Overshoot Day a warning sign?
Answer
It shows that people are using natural resources too fast. After that day, the yearly natural supply is already used up, so the balance of nature starts decreasing.
What chemicals are present in toothpaste used for brushing?
Answer
Toothpaste contains phosphate, carbonate, fragrance, and multi-colour chemicals. About 2 to 5 grams of chemicals may enter the water during mouth washing.
How does shaving pollute water?
Answer
Shaving creams and soaps contain chemicals such as sulphate, carbonate, stearic acid, ethanol, amine, and fragrance chemicals. About 2 to 5 grams of these chemicals can enter water during shaving.
How much water can be used for bathing?
Answer
Bathing can be done in a 20 litre bucket, or with 50 to 100 litres in a shower, or 300 to 400 litres in a tub. Using less water helps reduce wastage and wastewater.
What chemicals are used in soap making?
Answer
Soap making uses about 6 to 10 grams of edible oils, aromatic chemicals, dye sulphates, carbonates, sodium, and detergents. These chemicals finally reach wastewater.
What happens when clothes are washed with soap?
Answer
Washing clothes with soap adds about 8 to 10 grams of chemicals like phosphate to water. Ritha, Shikakai, and vinegar can be used as eco-friendly options for washing clothes.
How does washing utensils affect water quality?
Answer
Washing utensils releases about 20 grams of chemicals into water. Phosphates, carbonates, and silica may be used. Coconut shells, cow dung ash, charcoal ash, or clay can be used as safer alternatives.
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