masalah 1pilihanThe major greenhouse gas released from landfills is:OxygenCarbon monoxideHydrogenMethane
masalah 2pilihanUpcycling refers to:Enhancing the purpose of the existing materials.Converting waste into new, usable materials.Using items more than once before discarding them.Adding value without destroying the original material.
masalah 3pilihanWhich of the following is not a biotechnology-based recycling method?Phytoremediation of heavy metals from soil using sunflower plantsEnzyme-based depolymerization of plastic bottlesComposting leaves and food waste with microbial inoculantsGasification of plant biomass into syngas using high-temperature reactors
masalah 4pilihanWhat is the main goal of a circular bioeconomy? Promote 3R (Reduce, Reuse and Recycle)-based activitiesPromote economic activities that do not cause pollutionsBalance the profits from an economic activity.Promote the use of renewable biological resources by keeping materials in use for as long as possible.
masalah 5pilihanWhich of the following is NOT a key requirement in biotechnology-based recycling of waste materials?To characterise the waste materialsTo screen potential organismsTo optimise the biodegradation processTo eliminate all by-products resulting from the degradation