Answer
Bubbles appearing at the bottom of the pot are the gas bubbles that were forced out of the water when it is heated. Since increases in temperature will decrease gas solubility, the nitrogen and oxygen dissolved in the water are pushed out.
Work Step by Step
Bubbles appearing at the bottom of the pot are the gas bubbles that were forced out of the water when it is heated. Since increases in temperature will decrease gas solubility, the nitrogen and oxygen dissolved in the water are pushed out.