I need help pleaseee!!!

Jonas Salk developed a vaccine that provided protections against the feared disease polio.

Explanation:

The passage is about how the disease polio was killing thousands of people, and Salk studied and tested a vaccine for polio. He gave out the cure to a few million kids, and it was effective. He became a hero and was given an award from President Dwight D. Eisenhower.

I hope this helped!  ♡+*

to change your profile

1. hit your picture thing on the top right corner (that's where mine is).

2. there should be options under it, so hit "edit profile".

3. it'll bring you to a page that gives you these options: "preferences", "send info to email", "password",   "your email", and "profile picture". click "profile picture".

4. hit choose file.

5. click your picture you'd like and hit change!

i hope this and makes sense! good luck!