(251 words, 6 paragraphs, 25 lines)
Introduction: In the civilized world we cannot think our life without iron. It is the most useful metal. It is a mineral substance. It is solid and black. It is strong and lasting.
Where found: iron is found in mines. It is found in impure state. It remains mixed with other substances like mud and rock. It mainly found in the U.K., France, Soviet Union, North America, Germany, Sweden, Switzerland and India.
Kinds: Iron differs in quality. According to quality, it is of three kinds - cast iron, wrought iron and steel. Steel is the best and strongest.
How obtained: Iron-ore is dug out of mines. It is separated from other substances. Pure iron is obtained by adopting different processes. Charcoal is mixed with molten iron and we get steel.
Usefulness: Iron is more useful than any other costly metal. It is the most common metal. Iron is melted and given different shapes. Many things of our domestic use are made of it. Knives, sickle, spades, axes and many other daily useful things are made of it. It is used for constructing bridges, railway lines and engines, steamers etc. Agricultural tools are also made of it. The most lasting instruments like, scientific apparatus, surgical instruments, weapons, heavy machinery etc are made of steel. Modern civilization owes much to iron and steel. They play an important role in the mechanical development of the world.
Conclusion: Iron is the most useful wealth of a country. Humans rely on iron in many different ways.
04 Aug, 2019       725   views