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 the characteristic of the building material mentioned in the text?

How does the strength of the building material compare to its weight?

What tests have been conducted on the building mentioned?

Why is it considered safe to use this building material?

What is notable about the building discussed in the text?