Metals:
1. Iron:
- Iron is a commonly used metal, known for its strength and durability.
- It is used in the construction industry for making structural components like beams, rods, and girders.
- Iron is also used in the manufacturing of vehicles, machinery, and appliances.
- It is a key component of steel, which is widely used in the production of bridges, buildings, and infrastructure.

2. Aluminum:
- Aluminum is a lightweight metal with excellent corrosion resistance.
- It is widely used in the aerospace industry for making aircraft frames, wings, and components.
- Aluminum is also used in the manufacturing of automobiles, bicycles, and electrical wires.
- It is a key material in the packaging industry, used for making cans, foils, and containers.

Non-metals:
1. Carbon:
- Carbon is a versatile non-metal element that exists in various forms, such as graphite, diamond, and carbon nanotubes.
- It is a crucial component of organic compounds found in all living organisms.
- Carbon is used in the manufacturing of steel, as it acts as a reducing agent to remove impurities.
- It is also used in the production of carbon fibers, which are strong and lightweight, making them suitable for applications in aerospace and sports equipment.

2. Silicon:
- Silicon is a non-metal with semiconducting properties, making it essential in the electronics industry.
- It is used in the production of computer chips, transistors, and solar cells.
- Silicon is also used in the manufacturing of glass, ceramics, and cement.
- It is a key component of silicones, which are used in various applications such as sealants, lubricants, and electrical insulation.

In conclusion, metals like iron and aluminum are widely used in construction, manufacturing, and infrastructure, while non-metals like carbon and silicon find applications in industries like electronics, aerospace, and materials science. These materials play a crucial role in shaping our modern world and are essential for various technological advancements.

Metals:
copper:used for making wires
aluminum: used for making aluminum foil
zinc: as protective metal
iron:used for making nails,bolts and tools

non metals
Oxygen: breathing
nitrogen: important in nitrogen cycle
iodine:used as an antiseptic
chlorine:used to kill germs in water