Завантажити презентацію "Tornados"
A tornado is a violent, dangerous, rotating column of air that is in contact with both the surface of the earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud.
Tornadoes come in many shapes and sizes, but are typically in the form of a visible condensation funnel, whose narrow end touches the earth and is often encircled by a cloud of debris and dust.
Most tornadoes have wind speeds less than 110 miles per hour (177 km/h), are approximately 250 feet (80 m) across, and travel a few miles (several kilometers) before dissipating.
Well-known historical tornadoes include:
The Tri-State Tornado of 1925, which killed over 600 people in the United States;
The Daulatpur-Saturia Tornado of 1989, which killed roughly 1,300 people in Bangladesh.
Storm is The most studied cause of a tornado.
Rather the storm clouds that form the fast-moving currents of air, which subsequently form a funnel, slowly extending to the surface. Nature tornado occurrence is for scientists largely a mystery.
1. Tornadoes are formed when hot air and cold air are mixed.
2. The clouds grow larger and larger. Finally, a thunderstorm is brewed up with a strong updraft.
3. The moisture in the warm air rises and condenses into large clouds.
Results of tornado
1. Tornadoes can make People die.
2. The tornado can destroy a lot of homes, stores, and much more.
3. It can make serious injuries.
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