What contribution did Jonas Salk make to science in the 1950s? He invented DDT, the “miracle” pesticide.



He designed the first US satellite.



He developed smaller computers.



He created a vaccine against polio.

Answers

Answer 1
Answer: d , created a vaccine against polio is correct for plato
Answer 2
Answer:

Answer: The answer is D- he created the vaccine against polio

Explanation: Hope I helped!


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Which of the following is a similarity between the United States Constitution and all state constitution? A. executives called presidents B. Requirements to local governments
C. A Bill of Rights
D. A bicameral legislature

Answers

A similarity between the United States Constitution and all state constitution is C, a bill of rights. The initial 10 changes to the Constitution make up the Bill of Rights. Composed by James Madison in light of calls from a few states for more noteworthy sacred security for individual freedoms, the Bill of Rights records particular denials on legislative power.

How did some American use the Red Scare as an excuse?

Answers

Answer:

The Red Scare was hysteria over the perceived threat posed by Communists in the U.S. during the Cold War

During the "Red Scare" in the United States in the 1940s and 1950s, some American politicians and citizens used the fear of communism to attack their political opponents and other groups that they perceived to be anti-American. Some used the fear of communism as an excuse to push for laws and policies that suppressed free speech, civil rights, and other democratic values, often in the name of national security. This led to a climate of fear and suspicion in the United States, as many people feared that they or their loved ones could be targeted for their political beliefs or activities. Overall, the Red Scare was an unfortunate chapter in American history, and its legacy continues to have an impact on American politics and culture today.

What was the nixon doctrine? how did this doctrine play out in foreign policy

Answers

Essentially, the Nixon Doctrine was Richard Nixon's foreign policy manifesto. It outlined that the United States would provide help to foreign nations combatting communism with financial aid rather than military aid. This essentially was to limit the deployment of US military abroad, like in Vietnam or Korea. 
The Nixon Doctrine was in line with Nixon's idea of "Detente" which literally means "relaxation" in French. Nixon wanted to defuse relations with China and the USSR by withdrawing US troops from "proxy wars" (wars fought between two opposing sides but either side is backed by a foreign power, in this case the United States and the USSR). 
To answer the final part of your question, the Nixon Doctrine had initial success. The Doctrine was intrinsic to the Paris Peace Conference in 1973 which saw the end to the Vietnam War. It also allowed Nixon to obtain the Strategic Arms Limitation Treaty (SALT) with the USSR, which limited the amount of nuclear missiles (ICBM's especially), and become the first US President to visit Communist China. The Doctrine was essentially a part of a plan for "peaceful coexistence" between the democracies and the communists, and may have been successful were it not for Nixon's downfall in 1974 and Ford and Carter's lack of continuity in the Doctrine. 

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Can someone help fast will be marked as brainiest

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Hopefully this helps.

Pollution in the tenements created  hazardous conditions, especially for the children. Sickness spread quickly with so many people living in a small space which  led to many becoming gravely ill after a year of living within the buildings. It was a breeding ground for small pox, cholera,  typhoid, and tuberculosis. The death rate increased from diseases during this period. These families could not afford  medicines to take care of their maladies due to small incomes. As the population continues increasing, it caused even more  crowding and made conditions more severe. One in every ten infants would die living in the tenements. The people working  in the factories had to fight for basic necessities to live.

Which amendment in the Bill of Rights gives a citizen the right to due process (the state and nation have to respect the citizen’s legal rights)?First Amendment
Fourth Amendment
Fifth Amendment
Sixth Amendment
Eighth Amendment

Answers

the Fifth Amendment.

How have science and medicine influenced modern society?

Answers

Technology is constantly innovated, people die less which contributes to more work being completed.