Which of the following containers are filled with a pure substance, rather then a mixture?
A) a jar filled with salt water
B) a glass filled with chocolate milk
C) a tire filled with air
D) a balloon filled with helium

They said i have got a sign of tuberculosis what should i do

Explain how organisms could be harmed by high levels of salt from roadways?

Vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a.) antibody, antibiotic b.) antigen, antibody c.)antibiotic, antibody d.)antibody, antigen