CLEAN : Nineteen hurt as blast then fire bring down New York buildings

The video discusses a gas-related explosion that occurred due to plumbing and gas work at 121 2nd Ave. The initial impact was severe, leading to a building collapse. Emergency responders arrived quickly and conducted dangerous searches for victims. Concerns are raised for pedestrians who might have been affected by the collapse.

What was the preliminary cause of the explosion mentioned in the transcript?

• A chemical spill

• A natural disaster

• A gas-related issue

• A car accident

Where did the explosion occur according to the transcript?

• 321 3rd Ave

• 221 1st Ave

• 121 2nd Ave

• 123 2nd Ave

How quickly did emergency responders arrive at the scene?

• After 15 minutes

• In less than 3 minutes

• In about 5 minutes

• Within 10 minutes

What did the responders do before the building started to collapse?

• Secured the perimeter

• Evacuated nearby buildings

• Conducted dangerous searches for victims

• Called for backup

What concern is expressed about pedestrians in the transcript?

• They were evacuated safely

• They might have been injured by falling debris

• They were unaware of the explosion

• They were trapped inside the building