How did we know that we need to wear spacesuits in space? Who discovered this? Wouldn't the person have died. How do you know your eyes are open when you are sleeping.

Dang thats so true though lol

Explanation:

Have a good day!

answer; hepatitis a& b can be passed through breast milk; (true);

answer; /// an alphabetical list of sources arranged according to a citation style and followed by a summary of the content;