While tornadoes can happen in many places, they are most famously and frequently associated with North America. The unique geography of the United States—where cold air from Canada meets warm air from the Gulf of Mexico over flat plains—creates “Tornado ...
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At high altitudes, air is “free” and balances perfectly between pressure and the Coriolis force, blowing parallel to isobars. Near the ground, however, friction from trees and buildings slows the wind down. Since the Coriolis force depends on speed, it ...
The Horse Latitudes (30° N/S) are regions of high pressure created by sinking air. As air rises at the Equator, it travels poleward and eventually cools, becoming dense enough to sink back to Earth at these latitudes. Sinking air compresses ...
A primary pollutant is a chemical added directly to the atmosphere by natural or human activities, such as volcanic eruptions or burning fossil fuels. Sulfur dioxide is a classic example, as it is emitted directly from smokestacks. In contrast, secondary ...
The ozone layer specifically excels at absorbing UV-B radiation (280–315 nm). While it absorbs all UV-C radiation (the most dangerous), UV-B is the wavelength that partially reaches the surface and causes sunburn, skin cancer and cataracts. By absorbing most of ...