The correct answer is (d) Mumbai.
Mumbai generates the largest solid waste per capita annually among the four megacities of India. In 2017, Mumbai generated 12,000 tonnes of solid waste per day, which is more than the combined waste generated by Delhi, Chennai, and Bangalore. The high waste generation in Mumbai is due to its large population, high economic activity, and limited land availability.
The waste generated in Mumbai is mostly composed of organic matter, followed by plastic and paper. The organic matter is mostly from food waste, while the plastic and paper are from packaging materials. The waste is collected by the Brihanmumbai Municipal Corporation (BMC) and disposed of in landfills. However, the landfills are reaching their capacity and the BMC is looking for alternative ways to dispose of the waste.
The high waste generation in Mumbai is a major environmental problem. The waste contaminates the air, water, and soil. It also attracts pests and rodents, which spread diseases. The waste also contributes to climate change. The BMC is taking steps to reduce the waste generation in Mumbai. It is promoting waste segregation at source, composting, and recycling. It is also building new waste-to-energy plants.
The other options are incorrect because they do not generate the largest solid waste per capita annually.
(a) Bangalore generates 6,000 tonnes of solid waste per day.
(b) Chennai generates 8,000 tonnes of solid waste per day.
(c) Delhi generates 10,000 tonnes of solid waste per day.