Why was the Sacco and Vanzetti trial significant A( it showed how the Red Scare had influenced attitudes toward immigrants.
B( it showed that Americans were Sympathetic to immigrants.
C( it showed that immigrants were treated fairly by law enforcement officials.
D( it was demonstration of judicial fairness to immigrants.

A. It showed how the red scare had influenced attitudes toward immigrants

Explanation:

There was a rise for nationalism( a negative thing mind you, that discriminates against "non-Americans") in the early 20s, and it affected most of Americas judgement of a fair trail (and treatment in general) towards immigrants.

well first you need the sample of the temperature and gas level. i couldnt write a hypothesis unless i had some data. i think temperature changes will effect volumes of gas because gas changed into a solid or liquid at specific temperatures.