The Fukushima Daiichi nuclear plant, with six reactors built in the 1970s, faced a crisis after a magnitude 9 earthquake and subsequent tsunami on March 11th. The tsunami disabled emergency systems, leading to partial meltdowns and hydrogen explosions. Efforts to cool the reactors have been ongoing, with high radiation levels posing significant challenges. Contaminated water management and leak sealing are critical tasks, while future plans include covering the reactors and eventually dismantling them. The situation remains complex, with solutions still being explored.

What natural events led to the crisis at the Fukushima Daiichi nuclear plant?

• A tornado and earthquake

• A volcanic eruption and earthquake

• A tsunami and earthquake

• A hurricane and earthquake

What was the primary cause of the cooling system failure at the Fukushima plant?

• The tsunami knocking out emergency systems

• A fire in the control room

• An explosion in the reactor

• A power outage

What method was initially used to cool the reactors after the explosions?

• Covering with sand

• Using air conditioning

• Spraying water

• Using ice blocks

What technology was used to assess the damage inside the reactor buildings?

• Submarines

• Satellites

• Robots

• Drones

What is a major challenge of cooling the reactors remotely?

• High radiation levels

• Lack of water supply

• Unstable ground conditions

• Communication issues

What problem arises from the water used to cool the reactors?

• It freezes in cold weather

• It causes corrosion in the pipes

• It becomes contaminated with radioactive material

• It evaporates too quickly

What is one of the methods TEPCO is using to manage contaminated water?

• Using it for agricultural purposes

• Releasing it into the ocean

• Pumping it into temporary storage tanks

• Boiling it to remove impurities

What is TEPCO's plan to prevent radiation from spreading?

• Constructing a temporary cover

• Building a permanent wall

• Installing air filters

• Using chemical sprays

What is a long-term goal for the Fukushima site?

• Rebuilding the reactors

• Converting it into a wildlife reserve

• Turning it into a tourist attraction

• Removing the fuel and dismantling the reactors

What is a significant challenge in dismantling the reactors?

• Technological limitations

• Political opposition

• High radiation levels

• Lack of funding