143destiny 143destiny
  • 12-01-2017
  • History
contestada

which breakthrough helped most people ? and why?

Respuesta :

alay786
alay786 alay786
  • 12-01-2017
There are many breakthroughs that helped people but the polio vaccines is one. It was developed by Jones Salk first tested in 1952.
Answer Link

Otras preguntas

hello can anyone help me on the next four math questions please ? 1)5(x+2) 2) 4(2x+3) 3) 8(x+2) 4) 5(7x+4) thanks !!!
For a spinning amusement park ride, the velocity v in meters per second of a car moving around a curve with a radius r meters is given by the formula v=sqrt(ar)
Express as a single power of 2
. How did feudalism offer a stable political system for Europe? Feudal serfs were reliable workers because they practiced a single skill. Feudal farms could fee
. How did feudalism offer a stable political system for Europe? Feudal serfs were reliable workers because they practiced a single skill. Feudal farms could fee
What was a solution to scarce living/working space in cities during the industrial revolution?
What's smallest in order, 7.7, 7.77, 7.17, 7.707
What happens when you move to the left of a decimal point?
What happens when you move to the left of a decimal point?
The two shortest sides of a right triangle are 10 in. And 24 in. long. What is the length of the shortest side of a similar right triangle whose two longest sid