The equilibrium means that amount that are coming equals the amount that are going.
So the correct answers are
<span>2. A person's income and expenses are equal every month.
</span><span>3. The pressure exerted on the inside of a balloon by the gas inside is equal to the pressure exerted on the outside of the balloon by the atmosphere.</span>
Lead fluoride hope this helps
Did you ever find out the answer I'm in dier need
The most common nutrient deficiency in the world is Iron.
Iron is the answer.
Final answer:- a) Iron