History

History, 12.10.2019 05:10, shygrl05

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.

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What contribution did jonas salk make to science in the 1950s?

he invented ddt, the “m...

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