According to the rainfall records for a city, we have obtained the probabilities of receiving more than 500 mm of rain in four seasons (see the table below). If a seasonal recorded rainfall depth is found to be more than 500 mm, what are the probabilities of this rainfall record for four seasons? Comment benefit of using this observed rainfall record. Spring Summer Autumn Winter 0.05 0.6 0.7 0.15

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Environmental Consequences of Fossil Fuel Use

Fossil fuels are organic materials found inside the earth's surface. They are mainly composed of dead remains of plants and animals. The primary component constituents of fossil fuels are carbon and hydrogen, which are usually burnt to produce energy. Fossil fuels are believed to be formed millions of years ago when dead remains of animals and plants were subjected to high heat and pressure.