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.

The physical environment of the mesopotamians generally led to:

Was the Declaration of Independence intended to bela formal declaration of war? Why or why not?

Who was the winner of the presidential election of 1844?

why would officers and soldiers need to be quartered?

Why would the existence of spheres of influence threaten the United States' goals in China

You are an indigenous person of the Northeast region. You are likely to?

As president, Warren G. Harding promised America: O A. A great society O B. A new birth of freedom O C. A new deal O D. A return to normalcy

What was one major cause of world wide conflict during the first decade of the 21st century

What were women's rights in the Soviet Union like?

During the 1925 Scopes trial, the defense's main argument was that Scopes was being discriminated against. Scopes had done nothing illegal. evolution was the latest scientific fad. evolution was scientific fact.