Do 9. Glass which is strengthened by introducing stress through rapid heating and cooling the surface. tempered glass leaded glass soda lime glass laminated glass

## Step 1<br />The problem is asking us to identify the type of glass that is strengthened by introducing stress through rapid heating and cooling the surface. This process is known as tempering.<br /><br />## Step 2<br />Tempering is a process that increases the strength of glass by heating it rapidly and then cooling it quickly. This process introduces stress into the glass, which makes it stronger and more resistant to breakage.<br /><br />## Step 3<br />The other options provided, such as leaded glass, soda lime glass, and laminated glass, do not undergo this specific process of tempering. Therefore, they do not have the same level of strength as tempered glass.