Question

wood and concrete are the example of materials that are​

Answer 1

Answer:

Building materials are usually categorized into two sources: natural and manmade. Materials such as stone and wood are natural, and concrete, masonry, and steel are manmade.

Answer 2

Answer:

Building materials are usually categorized into two sources: natural and manmade. Materials such as stone and wood are natural, and concrete, masonry, and steel are manmade.