Answer the questions In Kunjpura village, located in Karnal district, Haryana, Aditya Aggarwal and his older brother Amit Aggarwal run Tee Cee Industries, a steel plant set up by their ancestors in 1984. Along with this, they also run a gaushala that houses 1,200 cows that can no longer produce milk.The cow shelter was manageable but running the steel plant was turning out to be expensive becau they spent a whopping Rs 5 lakh every month on electricity. The brothers struck upon an idea. Why not run the factory with the biogas produced from cow dung from the shelter and other gaushalas, along with bio and agri led Aditya and Amit to start Amrit Fertilizers, a biogas project, in 2014, without any government support. 1. Biogas is a mixture of the following gases. (a) Ethane, Carbon monoxide, Nitrogen and Butane (b) Methane, Hydrogen, Carbon dioxide and Nitrogen (c) Butane, Carbon monoxide, Propane and Hydrogen (d) Carbon monoxide, Sulphur dioxide and Hydrogen 2. Raw material used in bio gas plant is (a) Animal dung (b) crop residue (c) Food waste (d) All of the above 3. The correct labelling in a biogas plant is given in (a)A- ManureB-slurryC-Gas tankD- Digester(b)A- SlurryB-DigesterC-ManureD- Gas tank(c)A-Gas tankB-Manure C-DigesterD- Slurry(b) A- DigesterB-Gas tank C-SlurryD-Manure4. Biogas is a better fuel than animal dung cake because (i) Biogas has lower calorific value. (ii) Animal dung cake has higher calorific value. (iii) Biogas has high heating capacity. (iv) Biogas burns without smoke. (a) (i) only (b) (ii) only (c) (iii) and (iv) (d) (i) and (ii) 5. Biogas is formed in the (a) presence of air only. (b) presence of water only. (c) absence of air only.(d) presence of water and absence of air.