What was the impact of the civil rights protests in birmingham?
a. americans saw the police brutality and injustice faced by civil rights protestors.
b. americans ignored the attempt to gain attention to the civil rights movement.
c. civil rights protests were now banned in other cities.
d. the protesters rioted, hurting the civil rights movement.

The impact of the civil rights protests in Birmingham was that the Americans saw the police brutality and injustice faced by civil rights protesters. The correct option among all the options given in the question is option "a". The Birmingham protest was led by Martin Luther King in the year 1963. 

12cm^3

Explanation:

Just multiply each of the given dimension.

= 3.0 × 4.0 × 1.0

= 3 × 4 × 1

= 12