CLEAN:Taiwan turns plastic bottles into expo pavilion

The video discusses a building material that is both very light and strong. It has undergone safety tests for wind and earthquake resistance, ensuring its safety. The building constructed with this material is claimed to be the largest and lightest in the world.

What is a key characteristic of the building material discussed?

• It is light and strong.

• It is dark and dense.

• It is expensive and rare.

• It is heavy and fragile.

What kind of tests have the materials undergone to ensure safety?

• Pressure and weight tests

• Fire and water tests

• Wind and earthquake tests

• Temperature and humidity tests

Why is the building considered safe?

• It is made of steel.

• It has been tested against natural forces.

• It has a strong foundation.

• It is located in a safe area.

What makes this building unique in the world?

• It is the largest and lightest building.

• It is the most expensive building.

• It is the tallest building.

• It is the oldest building.

Which of the following is true about the building's size?

• It is the medium-sized building.

• It is the largest building.

• It is the second largest building.

• It is the smallest building.