1. Nguyen's central idea about dams is

a. they impact communities in negative
ways as well as positive ways.

b. they are worthy of Alvarado's praise
because of their environmental impact.

C, they are not worth building,

d. they provide people with jobs.

Respuesta :

The answer is A. Because it describes the impact
i think the answer is a) they impact communities in negative ways as well as positive ways