Answer:
Although Mumbai is a relevantly safe city, it has a crime filled underworld. With organised crime, smuggling, black markets, and kidnapping the rich for vast ransoms. Overcrowded trains and roads, pollution, poor sanitation and overpopulation in slums are also common urban problems in Mumbai.
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The are where an oceanic plate descends into the upper mantle is called a subduction zone.
Yes, organic material in soil is more productive.
Pacific mountain system, series of mountain ranges that stretches along the Pacific Ocean coast of North America from northern British Columbia (Canada) to northwestern Mexico. They run for some 4,500 miles (7,250 km) in the United States and extend northward into Canada for another 1,000 miles (1,600 km).
Precambrian rocks<span> are mostly covered by rock systems of more recent origin, but where visible they commonly display evidence of having been altered by intense </span>metamorphism<span>. Precambrian rocks often occur in shields, which are large areas of relatively low elevation that form parts of continental masses.</span>
