If hamburger is brown in the middle, then you can safely say that is done.
O False
True

Fasle

Explanation:

because you must check the temperature and all of the meat.

False

Explanation:

Because so much of the meat is exposed to air when ground beef is made, the myoglobin gets saturated with oxygen. ... When ground beef is packaged, the outside of the meat is exposed to air again, so it turns that pretty red color. The air can only penetrate so far through the meat, so the inside stays brown

age might have something to do with behavior depending on the age because not everyone who is the same age acts the same like 2 year olds could have bad behavior but some won't.

i hope this : )