1. Design and implement a class named "Liquid" using The class should have data members as chemical name, density, use and storage instructions. You may add more data members, if needed. The class should have two member functions -one to input information into data members of an object, the other for displaying all the information of an object.

Write appropriate main( function which creates an array of three "Liquid" objects. The main( function should demonstrate all the functionality of the class. You must enter meaningful data in the objects.

2. Consider the following class hierarchy along with suggested data members:

Telephone
• Phone Number
• Company
Landline Mobile
• Internet • Call rate
• Rent

Design and implement the classes in the hierarchy using You may add more data members in the classes, if needed. You should include at least one constructor in each class. All the classes should have a member function show_tele_info( which displays all the data stored in the object of the class. You must demonstrate polymorphism using main( and show_tele_info( functions.