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 Everest, the world's biggest mountain shrunk 2.5cm after earthquake, satellite data shows. Data obtained from European Space Agency Satellites shows Mount Everest subsided in last week's devastating quake, leaving it about 2.5cm shorter than before.