Question

question 11
2 pts
what mistake commonly leads to fires resulting from earthquakes?
not keeping matches in a safe drawer
leaving your oil lamps burning
not securing water heaters to walls
sparks from the friction between tectonic plates

question 12
2 pts
what kind of building material often is the most resilient during earthquake shaking?
concrete
steel
rebar enforced concrete
wood

Explanation:

For Question 11:

• Not keeping matches in a safe drawer is a minor issue compared to earthquake - related fire causes.
• Leaving oil lamps burning is a common cause as earthquakes can knock them over.
• Not securing water heaters to walls is more related to water leaks or falling hazards rather than fire.
• Sparks from tectonic plate friction is not a human - made mistake.

For Question 12:

• Concrete is brittle.
• Steel is strong but in pure form may not be as good as composite materials.
• Rebar - enforced concrete combines the strength of concrete and the tensile strength of rebar.
• Wood is relatively lightweight and has some flexibility, which helps it withstand earthquake shaking better than brittle materials like concrete.

Answer:

Question 11: Leaving your oil lamps burning
Question 12: wood