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Apple has lowered its revenue forecast for the first time in almost two decades, citing weakening demand and lower-than-expected iPhone revenue in China as among the factors.

Arrow-3 ballistic missile shield is seen during a series of live interception tests over Alaska, US, on July 28, 2019. [Photo/Agencies]

Apple’s Tim Cook prepares to unveil Apple Watch. (Apple photo)

Apple is "forecasting a stronger Q2 than analysts predicted, but the fact that the coronavirus is spreading in unpredictable ways in China, where Apple has most of its hardware built, could upset this optimistic forecast", said eMarketer principal analyst Yoram Wurmser.

Around 1,300 people per year, on average, died in mountain flood disasters from 2006 to 2010. After the warning system was developed, the average annual death toll decreased to 400(2011-15).