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sewage

Science Shows How We Flush Billions of Naira Down the Drain Yearly

Scientists have found trace amounts of copper, gold and silver in sewage as well as lost jewelry which they believe get into the sewers through a myriad of ways. What Are the Sources? They can get into sewers from precious metals which are increasingly being used in shampoos, cleaning products, cosmetics and detergents; shavings from [...]

Classwork Series and Exercises { Basic Science – JSS1}: Environmental Conservation and Safety

Topic: Environmental Conservation and Safety (Refuse) Introduction The environment is said to be safe when it is free of objects that can cause accidents, objects such as broken bottles and plates, broken furniture, drugs and medicine, slippery floor, kitchen knives, empty cans with sharp edges, broken staircases and steps. Sewage: Refers to human solid and liquid [...]