With reference to polyethylene terephthalate, the use of which is so widespread in our daily lives, consider the following statements : 1. Its fibres can be blended with wool and cotton fibres to reinforce their properties. 2. Containers made of it can be used to store any alcoholic beverage. 3. Bottles made of it can be recycled into other products. 4. Articles made of it can be easily disposed of by incineration without causing greenhouse gas emissions. Which of the statements given above are correct ?

PET (polyester) is commonly blended with natural fibers to enhance durability and is highly recyclable into new products, making statements 1 and 3 correct. Statement 4 is incorrect because incinerating PET, a hydrocarbon-based polymer, inevitably releases carbon dioxide ($CO_2$) and other greenhouse gases, while statement 2 is false as PET is not suitable for all alcoholic beverages due to gas permeability and potential chemical leaching. The core concept tested is the chemical properties, industrial applications, and environmental impact of common synthetic polymers.