Environmental Impact — Prelims Questions

Which of the following statements about the environmental impact of nanotechnology is/are correct? 1. Engineered nanomaterials (ENMs) always degrade rapidly in the environment, posing minimal long-term risk. 2. Green nanotechnology primarily focuses on using nanomaterials to enhance fossil fuel extraction. 3. Bioaccumulation of ENMs in food chains is a significant environmental concern. 4. India has a comprehensive, nano-specific regulatory framework for environmental safety.

Which of the following constitutional provisions in India provides a foundational basis for addressing the environmental impact of nanotechnology, even without explicit mention?

Consider the following statements regarding 'green nanotechnology applications': 1. They primarily aim to reduce the environmental footprint of industrial processes. 2. They include the use of nanomaterials for enhanced water purification. 3. They involve the development of biodegradable nanomaterials to minimize persistence. Which of the statements given above are correct?

Which of the following poses the greatest challenge in the environmental monitoring of engineered nanomaterials (ENMs)?

Consider the following pairs: 1. Stockholm Convention: Regulates transboundary movement of hazardous wastes. 2. Basel Convention: Aims to eliminate or restrict the production and use of Persistent Organic Pollutants (POPs). 3. Precautionary Principle: Places the burden of proof on those proposing an activity with potential environmental harm. Which of the pairs given above is/are correctly matched in the context of 'nanosafety environmental concerns'?