Lethal injection gained popularity in the late 20th century as a form of execution intended to supplant other methods, notably electrocution, hanging, firing squad, gas chamber, and beheading, that were considered to be less humane. It is now the most common form of execution in the United States.
Confidence votes 48. Mount Everest is the highest mountain in the world when measured from sea level at 29,029 ft. However Mount Mckinley is taller than Everest when measured from base to summit at 18,400 ft, versus everest's 17,100 ft.
Mount McKinley (also known as Denali) is the highest mountain on the North American continent. Its summit is 20,237 feet (6,168 meters) above sea level. It is located in the USA, in the state of Alaska.ount McKinley (also known as Denali) is the highest mountain on the North American continent. Its summit is 20,237 feet (6,168 meters) above sea level. It is located in the USA, in the state of Alaska.