Science, asked by namanshab5999, 1 year ago

The first effective vaccine against polio was prepared by ?
A) Robert Edwards
B) James Simpson
C) H Gibbon
D) Jonas E Salk

Answers

Answered by khushboomalik

1

option ..d
Jonas E Salk

Answered by Pari0819

0

HEY MATE

UR ANS IS

D) JONAS E SALK

HOPE IT HELPS U

^_^

Previous Question

Next Question

Similar questions

Chemistry, 6 months ago

which of the following can function as a chelating agent? a. Sh- b. H2O c. H2 NCH2CO2- D. SCN-...

English, 6 months ago

long essay on covid -19...

English, 6 months ago

One a 2 PAOLTO Then the test tube contains some acid another test tube contains an equal quantity of water To prepare solution 20 grams of the add is poured into the Second - test to be tou - thirds of so-formed solution is Poured from the second test tube first If the Huid test tube is four times of water that in the second what quantity was taken initially? into the 0 دوليا 60 لا ©8og. Soos b...

Science, 1 year ago

D.D.T. was invented by A) Paul Muller B) John Dalton C) Rudolf D) None of these...

Math, 1 year ago

divide until the remainder is zero :- 32.841÷9?

English, 1 year ago

GIVE ME A GOOD LIST OF HAREM AND ECCHI ANIME , and if in case moderator deletes it than message me...

Math, 1 year ago

how to chage this v=24km/h= 6.67m/s...

English, 1 year ago

write an email to your friend about the planning of summer vacation...