A house falls off a hill and collapses in San Francisco, California.

The video discusses how structures can be destabilized by various forces such as being pushed, blown down, undermined, or tampered with, leading to their collapse.

What are some factors that can lead to the destabilization of a structure?

• Being illuminated

• Being pushed or blown down

• Being cleaned

• Being painted

Which of the following is NOT a cause of structural destabilization mentioned in the video?

• Being tampered with

• Being undermined

• Being pushed

• Being reinforced

What is the ultimate result when a structure is destabilized?

• It falls down

• It becomes stronger

• It changes color

• It becomes taller

Which of the following actions would most likely prevent a structure from falling?

• Cleaning its surface

• Painting it

• Illuminating it

• Reinforcing its foundation

What happens to structures that are tampered with according to the video?

• They change shape

• They just fall down

• They become lighter

• They become more stable