Waste Management — Set 3
Environment · अपशिष्ट प्रबंधन · Questions 21–30 of 40
What is the primary goal of the 3Rs (Reduce, Reuse, Recycle)?
Correct Answer: A. To conserve natural resources
The correct answer is 'To conserve natural resources'. The 3Rs are a hierarchy of waste management aimed at minimizing environmental impact. By following these steps, we can extract fewer raw materials from the Earth. It is a fundamental principle of the circular economy.
Which type of waste can be converted into 'Compost'?
Correct Answer: C. Fruit peels
The correct answer is 'Fruit peels'. Composting is the natural process of recycling organic matter into a rich soil conditioner. Only biodegradable materials like food scraps and yard waste can be composted. This process reduces the amount of organic waste sent to landfills.
What is a 'Landfill' primarily used for?
Correct Answer: D. Long-term waste disposal
Landfills are designated areas for the burial of waste materials. Modern landfills are engineered to protect the environment from contamination. They remain the most common method of organized waste disposal globally.
Which material is highly suitable for 'Recycling' multiple times without losing quality?
Correct Answer: C. Glass
Glass can be recycled indefinitely without any loss in purity or quality. Using recycled glass also saves energy compared to making new glass from raw sand. It is one of the most sustainable materials used in packaging.
What is 'Hazardous Waste'?
Correct Answer: C. Toxic or flammable chemicals
The correct answer is 'Toxic or flammable chemicals'. Hazardous waste possesses properties that make it dangerous or capable of having a harmful effect on human health. This includes substances that are corrosive, reactive, or poisonous. Strict regulations govern the handling and disposal of such materials.
Which process turns waste into new products to prevent waste of potentially useful materials?
Correct Answer: A. Recycling
Recycling involves collecting and processing materials that would otherwise be thrown away. It helps reduce energy usage and pollution associated with extracting new raw materials. Paper, plastic, and metals are commonly recycled items.
Which of these is a major source of 'Marine Pollution'?
Correct Answer: D. Plastic waste from land
A significant portion of ocean plastic comes from land-based sources via rivers and wind. This pollution harms marine biodiversity and disrupts oceanic ecosystems. Global initiatives are focused on reducing plastic leakage into the seas.
What is 'Incineration'?
Correct Answer: D. Burning waste at high temperatures
Incineration is a disposal method that involves the combustion of organic substances contained in waste. It converts waste into ash, flue gas, and heat. It is often used to reduce the mass and volume of solid waste.
Which bin is usually used for 'Biodegradable' waste in many cities?
Correct Answer: B. Green bin
Green bins are standard for wet waste like food and kitchen scraps. This waste is often diverted to composting or biogas plants. Color-coded bins are essential for effective community-level segregation.
What is the term for 'Solid Waste' produced by cities and towns?
Correct Answer: B. Municipal Solid Waste (MSW)
MSW includes everyday items we use and then throw away, such as product packaging and clothing. Managing this waste is a primary responsibility of local government authorities. The composition of MSW varies greatly between developed and developing regions.