Sorry can't help you I'm still on fractions.
Well think about it, Benvolio and Mercutio are Romeo's best friends. They are worried about him, because firstly he is in love with Rosaline - this love in unrequited. This makes Romeo very depressed for a long period of time. So, of course they are worried about him. Also, after Capulet's party, Romeo mysteriously disappears, which leaves both Mercutio and Benvolio worried for him. As well as the fact that Tybalt discovered that Romeo had gatecrashed the party and now is looking for vengeance. Hope this helped.
Answer:
Steel is an alloy of iron and carbon containing 0.1to1.5% carbon. Thus, the constituents of steel are iron and carbon. Pure iron is not very hard and strong.
It is brittle and, therefore z it cannot be used for structural proposes. Hence, most of the molten pig iron obtained from blast furnace is converted into steel.
Steel is very hard, tough and strong. It is used for making rails, screws, girders, bridges, railway lines, etc. Steel also can be used for the construction of buildings, vehicles, ships, etc
