Question

what does concrete mean in this sentence? the empty reservoir is concrete evidence that we are experiencing a serious drought. concrete adjective specific and real concrete noun a gray building material made with cement

Explanation:

To determine the meaning of "concrete" in the sentence "The empty reservoir is concrete evidence that we are experiencing a serious drought," we analyze the context. The sentence is about evidence related to a drought, and "concrete" here is used to describe the evidence as specific and real (adjective), not referring to the building material (noun) since the context is about evidence, not a physical material.

Answer:

concrete adjective specific and real