Answer:
A buffer
Explanation:
A buffer is composed of a weak acid and a conjugate base. They are resistant to pH because of equilibrium between the acid and its conjugate base.
Answer: Public health measures such as pure food and water, and development of immunizations against many serious diseases such as polio and smallpox, coupled with enhanced economic conditions, are together credited with substantial reductions in the burden of infectious diseases.
Sandpaper for toil or paper!! It would burn tho...
Put her hands in the correct position or slightly arch her back