Because of the Salt and water mixed together in the air.
Its just like putting water and salt on Iron and letting it sit there for a while.
Because there is salt spray (wind spraying the sea water) near the sea which causes steel to rust.
When salt and water and air combine, it accelerates the oxidation, therefore making the car rust faster :)
Yes, iron objects close to the sea can rust faster due to the higher presence of moisture and salt in the air, which accelerates the oxidation process. The salt in the air can also act as an electrolyte, enhancing the rusting process.
The sea air has moisture in it, causing the metal to corrode faster.
Rust in it's truest definition is Iron(III) Oxide, meaning the only metal that can "rust" is Iron. If you are asking, "What metals oxidize more quickly near the sea?" The answer would still be Iron or steel, which has Iron in it. Oxidation occurs when metals have chemical reactions with Oxygen in the air and water. Rust occurs when the Iron atoms lose a few electrons to the Oxygen atoms and deteriorates the structure of the molecules, creating weak points. Salt water and salty air allows ions to flow more easily from objects creating faster decay. Ships battle this natural process be attaching galvanic anodes to the hull of the ships, this anode can be made out of Magnesium, Aluminum, or Zinc and basically creates a magnet for the ions, from the Oxygen, to "attack" it instead of deteriorating the Iron. These anodes need replaced about every 6 months.
The presence of dissolved ions in sea water, such as chloride ions, accelerates the oxidation of iron in a process called corrosion. Distilled water lacks these ions, so the oxidation process is slower. This is why an iron paper clip in sea water rusts faster than in distilled water.
Because there is more salt in the air from the sea winds; And we know that the mixture of salt and water makes metal rust.
Wood is the most usual material for decking and if treated and maintained can last for years. Iron may be used for the railings or some of the structure if the deck is raised but can corrode or rust if you live near the sea.
It's at the bottom of the sea and is made of iron, so it's a good guess that it rusted long ago.
Metals corrode faster near the sea due to the presence of salt in the air and water. Salt acts as an electrolyte, accelerating the corrosion process by increasing the flow of electrons in the electrochemical reaction. This leads to a quicker breakdown of the metal's surface.
Living in colder climates that get more snow can cause your care to rust faster. The salt that highway departments typically use on winter roads can accelerate the rusting of automobiles.
Faster than what? Iron rusts when it is in the presence of water and oxygen. If you add salt to the water, it will rust more quickly than it does in pure water, which is why piers in the sea are inevitably rusty. The salt helps to set up an electro-chemical reaction that speed up the process by stripping off the coating of iron oxide as it forms on the surface of the metal. Sulfur dioxide and carbon dioxide dissolved in the water will also accelerate rusting.