Once it dries, concrete is stronger and more durable than many other building materials. It is resistant to wind, water, and temperature extremes. Buildings made of concrete provide better fire resistance than those made of wood. Concrete buildings also offer excellent energy efficiency.

Question

Today, concrete is the most widely used synthetic material on Earth. Concrete has created structures like the Hoover Dam, the Burj Khalifa, and the Sydney Opera House. It is used to build homes, commercial buildings, roads, bridges, and sidewalks.
A large concrete dam across a deep valley. A lake is on one side of the dam and a river is on the other side of the dam.
Hoover Dam, United States

an extremely tall skyscraper rising high above the other buildings in the city
Burj Khalifa, United Arab Emirates

a building with several large, shell-shaped structures forming its roof
Sydney Opera House, Australia

Why is concrete a widely used building material? Select all that apply.
A. concrete is resistant to weather and temperature extremes.
B wood buildings have greater fire resistance than concrete buildings
C.concrete can be poured into molds, so it can form different types of structures.
D. compared to other buildings materials, concrete is stronger and more durable

Answer 1

The reasons why concrete is a widely used building material include:

A. concrete is resistant to weather and temperature extremes.
C. concrete can be poured into molds, so it can form different types of structures.
D. compared to other buildings materials, concrete is stronger and more durable.

Option B is incorrect because it states that wood buildings have greater fire resistance than concrete buildings, which is not true; concrete buildings typically provide better fire resistance.