Answer:
What does the law of conservation of matter state?
The Law of Conservation of Matter states that matter cannot be created or destroyed. In a physical change, substances can change form, but the total mass remains the same.
Explanation:
Development of the middle class, i hope that helped
"A. Anticommunist laws were passed" and "<span>D. Some government workers were forced to take loyalty oaths" are true. There was large-scale surveillance done of people suspected </span>of being Soviets.
In the speech Washington argued for individualism by suggesting that the black people try to develop themselves.
<h3>Summary of Washington's speech</h3>
The summary is that this person was advocating that the black man endures the stereotypes and segregation for a while and concentrate their efforts on self help.
Since then there has being great changes in segregation. Schools have become accepting to all and no one is excluded from systems based on their race in America.
The work ethic has remained strong since then. People have learnt more skills for survival and more people have being educated.
Read more on segregation here:brainly.com/question/12498653
I think the answer is: D. <span>Determine whether or not the claim has been made before.
Hope this helps!</span>