Q1. Which component in CRT monitors contains toxic phosphor coatings?
- Front glass
- Cathode tube base
- Faceplate interior
- Display cover
Correct Option: 3. Faceplate interior
Explanation: CRT monitors have phosphor coatings inside the faceplate, containing toxic elements like cadmium and other heavy metals, which are dangerous during manual dismantling.
Q2. What is the main reason for plastic persistence in marine environments?
- Salinity of seawater breaks down plastic
- UV degradation is faster in water
- Retrieval and recycling is easier
- Slower degradation and difficult collection
Correct Option: 4. Slower degradation and difficult collection
Explanation: In marine environments, plastics degrade slowly due to low UV exposure, and retrieval is hard, leading to long-term persistence.
Q3. What does the acronym ‘RoHS’ stand for?
- Regulation of Health and Safety
- Restriction of Hazardous Substances
- Recovery of Household Substances
- Removal of Harmful Substances
Correct Option: 2. Restriction of Hazardous Substances
Explanation: RoHS refers to limiting hazardous substances like lead, mercury, cadmium, etc., in electrical and electronic equipment.
Q4. Which Rule introduced the concept of Extended Producer Responsibility (EPR) for plastic waste for the first time?
- Plastic Waste Management Rules, 2016
- Plastic Waste Management Rules, 2011
- Plastic Waste Management Amendment Rules, 2021
- Environment Protection Act, 1986
Correct Option: 1. Plastic Waste Management Rules, 2016
Explanation: EPR was first formally introduced under Plastic Waste Management Rules, 2016, making producers responsible for managing waste from their products.
Q5. What is the role of CPCB’s online portal as per Plastic Waste Management Amendment Rules, 2022?
- Sell plastic items online
- Act as a job portal for recyclers
- Register stakeholders and track compliance
- Monitor imports of plastic
Correct Option: 3. Register stakeholders and track compliance
Explanation: The CPCB (Central Pollution Control Board) portal helps in registering producers, importers, and recyclers, ensuring compliance with EPR obligations and serving as a central data repository.