Q1. Which of the following types of waste is prohibited from being imported into India as per the Hazardous and Other Wastes (Management & Transboundary Movement) Rules?
- Construction debris
- Solid plastic waste
- E-waste for recycling
- Bio-medical waste
Correct Option: 2. Solid plastic waste
Explanation: Import of solid plastic waste has been completely prohibited, including in Special Economic Zones (SEZs) and by Export Oriented Units (EOUs), to curb environmental pollution and plastic accumulation.
Q2. Under the Construction and Demolition Waste Management Rules, who is responsible for placing collection bins and ensuring regular waste removal?
- Local Authority
- Contractors
- Pollution Control Boards
- Builders
Correct Option: 1. Local Authority
Explanation: The Local Authority is responsible for placing appropriate containers for waste collection, ensuring regular removal, and transporting it to processing/disposal sites.
Q3. How many waste categories are there under the Bio-Medical Waste Management Rules, 2016 (after the amendment)?
- 10
- 8
- 4
- 6
Correct Option: 3. 4
Explanation: The revised rules reduced the number of categories from 10 to 4 to make segregation easier and more effective at the source.
Q4. Which of the following is a major source of lead in e-waste?
- Mobile phone batteries
- Printed circuit boards and CRT monitors
- LCD panels
- Solar panels
Correct Option: 2. Printed circuit boards and CRT monitors
Explanation: Lead is mainly used in solder in printed circuit boards and glass panels in CRT monitors. It affects the nervous system and brain development, especially in children.
Q5. What makes mercury particularly dangerous in aquatic ecosystems?
- It rusts quickly
- It becomes bio-inert
- It turns into methylated mercury and bioaccumulates
- It evaporates immediately
Correct Option: 3. It turns into methylated mercury and bioaccumulates
Explanation: Mercury, once in water, converts into methylated mercury, which bioaccumulates through the food chain, especially in fish, causing severe health risks to humans.