Help me kindly to solve the following!!!!!!!

Dear Student,

​​​​1. Natural materials are those that are directly obtained from nature. Examples of natural materials: 

• Silk
• Wool
• Bamboo
• Jute
• Flowers
• Shells
• Gold
• Coal
• Cotton
• Water
• Rubber

2. Man-made materials are the ones that made artificially by man.  Example of man-made or artificial materials:

• Polythene
• Synthetic rubber
• Steel
• Polyester
• Nylon
• Concrete
• Teflon
• PVC ( Polyvinyl Chloride)

Regards