Correct Option (A)
Statement I is correct. A circular economy aims to minimize greenhouse gas (GHG) emissions. This is achieved by reducing energy demand across the value chain, avoiding emissions associated with the extraction and processing of virgin materials, and limiting the disposal of waste in landfills or through incineration, which are significant sources of GHGs.
Statement II is correct. A fundamental principle of the circular economy is to keep resources in use for as long as possible. This involves strategies like reuse, repair, refurbishment, remanufacturing, and recycling, which collectively reduce the reliance on new raw materials as inputs for production. This directly conserves natural resources and lessens the environmental impact of primary resource extraction.
Statement III is correct. The circular economy model is designed to eliminate waste and pollution by optimizing resource use and product lifecycles. This includes designing products for durability, repairability, and recyclability, implementing efficient production processes, and establishing closed-loop systems where materials are continuously circulated, thereby significantly reducing overall wastage.
Both Statement II and Statement III explain Statement I. The reduction in the use of raw materials (Statement II) directly contributes to lower greenhouse gas emissions by decreasing the energy required for extraction, transportation, and primary processing of virgin materials. Similarly, the reduction of wastage in the production process (Statement III) minimizes energy consumption, avoids emissions from waste treatment, and reduces the overall demand for new materials, all of which lead to a decrease in greenhouse gas emissions. Therefore, both statements provide valid explanations for the reduction of greenhouse gases in a circular economy.
Incorrect Options:
Option 2 is incorrect because both Statement II and Statement III accurately describe mechanisms that contribute to the reduction of greenhouse gas emissions (Statement I) within a circular economy, not just one of them.
Option 3 is incorrect because both Statement II and Statement III are factually correct statements that accurately represent the characteristics and benefits of a circular economy.
Option 4 is incorrect because both Statement II and Statement III are correct descriptions of the operational principles and outcomes associated with a circular economy model.