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Rust on metal is an oxide of that metal. Most commonly it refers to iron oxide.


Rust on a plant is a disease caused by a pathogenic fungus.


In English the same word is used for these two very different things, possibly because the fungus on a leaf looks something like rust on iron. Many other languages use completely unrelated words for the two things.

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Related Questions

Is metal rust bad for trees?

Metal rust will not harm trees. There are a number of fungus rusts that can harm plants but they are not metal rusts.


What is the difference between rust resistant and rust proof?

Something that is rust resistant will not rust easily; minor exposure to water will not cause it to rust. Something that is rust proof will not rust.


Does metal rust faster in light?

No light evaporates the water rusting the metal, not a lot but enough to make a significant difference.


How does the difference in concentration of saltwater affect the oxidation of a metal?

The more saltwter will make it rust faster.


What is the best rust solution for metal?

The best rust solution for metal is a rust converter or rust inhibitor that can stop the rusting process and protect the metal from further corrosion.


Can rust kill plants?

rust is the answer


Is rust a type of fungus?

No, rust is the formation of a layer of a metal oxide on the surface of a metal.


Why does rust flake away from metal?

Rust flakes away from metal because its a layer of loose material. The metal underneath is no longer protected and will begin to rust also.


Which metal will turn into rust if you leave it in the air?

Iron or steel will rust, this is called oxidation. It's a reaction between oxygen and iron or steel


Can orange jucie rust metal?

yes orange jucie does rust metal.


What mainly makes metal rust?

acid rain is what most commonly makes metal rust


How does cast iron respond to rust?

Rust is the oxidation of the cast iron. Oxygen in the air combines with the base metal to create the rust. The rust protects the metal underneath. Cast iron is not "reacting" to rust. It is participating in FORMING the rust. ************** previous answer below *************** Very well as the rust actually protects the base metal