Duke of Cambridge attends a service to mark 50 years of Britain's nuclear submarine deterrent

The transcript describes a person's distant observation of a mushroom cloud through a glass window, which left a lasting impact on their life and the lives of people in Japan. It also provides technical details about the bomb, including its uranium core and explosion altitude.

What did the narrator see from a distance?

• A parade

• A thunderstorm

• A mushroom cloud

• A rainbow

How did the experience affect the narrator?

• It made him forgetful

• It had no effect

• It transformed his life

• It made him happy

What was the weight of the bomb's core?

• 30 kilograms

• 60 kilograms

• 90 kilograms

• 120 kilograms

What material was used in the bomb's core?

• Silver

• Plutonium

• Uranium 235

• Gold

At what altitude did the bomb explode?

• 1000 meters

• 100 meters

• 600 meters

• 2000 meters