How many tons of debris were removed from Ground Zero in the wake of the 9/11 terrorist attacks?

  • 1 million tons
  • 1.2 million tons
  • 1.8 million tons correct

    1.8 million tons of debris were cleared from ground zero. Almost as soon as the World Trade Center’s twin towers fell on September 11, 2001, thousands of firefighters, police officers, construction workers, search-and-rescue dogs and volunteers headed to Ground Zero to look for survivors. Because they didn’t know how many people were trapped alive in the wreckage, firefighters and other rescue workers had to search carefully through the unstable piles of rubble for air pockets, called “voids,” where they might find people who had been unable to escape from the collapsing buildings. To be safe, they didn’t use any heavy equipment at first. Some dug with their bare hands, while others formed bucket brigades to move small amounts of debris as efficiently as possible.

  • 2.2 billion tons
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