Question

Which of the following would not be a good supporting sentence for a cause-and-effect paragraph that begins with this topic sentence?

Constructing a dam on the Elwha River had many negative
effects.
A. The Elwha dam is a scar upon the environment with significant
effects anyone can easily see.
B. And finally, the dam flooded acres of pristine nature that now lie
beneath the dam's reservoir
C. The dam also prevented the river from depositing its sediment at
the river mouth, which increased coastal erosion patterns.
D. Perhaps the easiest to identify is that the dam prevented the river's
native salmon population from returning to its birthplace to
spawn.

Answer 1

a

Step-by-step explanation:

Answer 2

A

Step-by-step explanation:

It is not good because it is not giving any evidence, nor is it using any type of fact in order to prove its effectiveness or lack thereof.