जीवाश्म ईंधनों के विकल्प के रूप में व्यावसायिक अपशिष्ट से प्राप्त ठोस पुनर्चक्रित ईंधन (Solid Recovered Fuel - SRF) का एक प्रमुख अनुप्रयोग निम्नलिखित में से कौन सा है?

Which of the following is a direct source of solid waste?

Which solid waste management technique focuses on compressing materials to minimize storage space and enhance ease of handling during transport?

Which thermal waste treatment method involves the degradation of waste in the absence of oxygen to yield char, bio-oil, and syngas?