Question

Which statement best expresses the main idea of paragraph 3? F Modern highways and bridges are often constructed with concrete. G Concrete was used by ancient Romans to build massive structures. H The demand for concrete has doubled in the last decade. J Concrete has been and continues to be an important building material.

Answer 1

Answer:read then answer

Explanation:key

Answer 2

J) Concrete has been and continues to be an important building material.

Step-by-step explanation:

It best describes the passage