WORLD CIVILIZATION

Detailed explanation-1: -1. We use sealed classes to prevent inheritance. As we cannot inherit from a sealed class, the methods in the sealed class cannot be manipulated from other classes. It helps to prevent security issues.

Detailed explanation-2: -Before the test, don’t eat foods that can change the colour of your urine. Examples of these include blackberries, beets, and rhubarb. Don’t do heavy exercise before the test. Tell your doctor ALL the medicines and natural health products you take.