Optional standard mileage rates for use of a vehicle will change a little for 2015, the IRS announced on Wednesday, with the business use rate going up and the medical and moving rate going down (Notice 2014-79).
Thunderstorms are caused by a collision of warm air and cold air. A thunderstorm is a cloud formation where large amounts of water undergoes a cycle of condensation, freezing then revaporizating as the currents of vapor within the cloud rises and falls. This produces static electricity which discharges as lightning. Thunderstorms are caused by a collision of warm air and cold air. A thunderstorm is a cloud formation where large amounts of water undergoes a cycle of condensation, freezing then revaporizating as the currents of vapor within the cloud rises and falls.
Top 10 facts about the world. Thunder is caused by the sudden expansion of the air around a lightning bolt's path. The deep rumbling and sharp cracks of thunder are produced as the air around the lightning bolt is superheated â up to about 54,000Â° Fahrenheit (about 33,000Â° Celsius) â and rapidly expands. This rapid expansion creates an acoustic shock wave that manifests itself as thunder.