How Are Tornadoes Classified?
How Are Tornadoes Classified? Since 2007, the United States has classified tornadoes using the Enhanced Fujita Scale, also called the EF Scale, which employs estimates of tornado strength based …
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Different Types of Birthmarks – 7 Most Common Types, Prevalence, & Risk Factors
Different types of birthmarks fall into two categories-pigmented birthmarks and vascular birthmarks. Pigmented birthmarks occur when you have more pigment on one part of your skin than another. Vascular …
Does Mars Have a Magnetic Field?
Does Mars Have a Magnetic Field? Mars does not have a significant magnetic field, though scientists believe it once did. In 1998, the Mars Global Surveyor detected sporadic magnetic …