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Metals rust with time if they come in contact with water and air. They can also be very noisy. As metals are generally hard, use of metals requires professional tools. Recycling metals create a lot of toxic gases. For recycling, metals need to be especially separated from other recyclables. Mining also produces lots of noise and air pollution along with the emission of poisonous gases in blast furnaces.
What else can I help you with?
What are the advantages and disadvantages of using incineration to dispose of heavy metal?
The disadvantage is that you can't destroy heavy metals (or any metals or, indeed, any chemical elements) by incineration. So the most you can achieve by incineration is scattering heavy metals around with ash that is carried away with smoke.
What are the disadvantages of transition metal?
They're just so... transitioney. This question makes no sense. There are no "disadvantages" of "transition metals" in general, you'd have to specify a particular application and a particular metal. To give you an idea of what kind of range of properties we're talking about, iron and gold are both transition metals.
What are two disadvantages of using alloys instead of pure metals?
Alloys (mixtures of metals and other elements) have different properties form pure metals.Two examples:An alloy of carbon & iron males steel which can be much harder than ironAn alloy of copper and tin makes bronze which is harder and more corrosion resistant than either of the pure metals
What are the advantages and disadvantages of green sand molds?
Advantages: Low cost, good collapsibility, can be reused, and can produce castings with good surface finish. Disadvantages: Limited to casting low-melting point metals, slower cooling rates compared to other mold materials, may emit toxic fumes during casting.
What are the classes of elements on the periodic table?
non-metals .... alkali metals....transition metals....alkali earth metals....rare earth metals....other metals....halogens....inert elements
What are the advantages and disadvantages to expansion and contraction of metals?
Thermometers
Disadvantages of using metals in construction?
Some metals are not strong enough to be able to hold tons of weight
Disadvantages and advantages of ferrous metals?
Advantages of ferrous metals include their high strength, durability, and magnetic properties. However, disadvantages may include susceptibility to corrosion, heavier weight compared to non-ferrous metals, and limited formability.
What are the disadvantages of multi start thread cutting on metals?
It needs high skill manpower
What are advantages and disadvantages of ferrous metals?
Advantages of ferrous metals High strength to weight ratio compared to Non-metals Heavier than Aluminum and Titanium Alloys High quality and durable material Prone to corrosion by rusting (except stainless steel) Machine-ability Affected by magnetic field Recyclable and environmentally friendly Disadvantages of ferrous metals Requires more energy to form into shapes or re-work compared to Aluminum Alloys
Paint advantages and disadvantages?
It covers and protects woods and metals from the elements. It also adds colour.
What are advantages and disadvantages of nonferrous metals?
Disadvantages- may be more expensive and not as strong as ferrous metals.Advantages- may be a better electrical conductor, not affected by magnetism, may be corrosion resistant.
What are the disadvantages of using transition metals or their compounds as catalysts?
Some disadvantages of using transition metals or their compounds as catalysts include high cost due to the scarcity of these metals, potential toxicity of certain compounds, and the need for specialized handling and disposal procedures. Additionally, some transition metal catalysts may undergo leaching or deactivation during the catalytic process, leading to reduced efficiency or the need for frequent regeneration.
What are two clinical disadvantages of cast metals that have lower elastic moduli?
1.They will be highly brittle. 2.They will have less usage life.
What are the advantages and disadvantages of using metal in bicycles?
It's strong enough, light enough and cheap enough. Iron-based metals might rust, and it costs a fair bit in energy and pollution to produce metals.
What are the disadvantages of silver?
It's expensive because it is quite scarce, it tarnishes, and it melts earlier and is less strong than some other metals.
What are the disadvantages to phytomining?
Some disadvantages of phytomining include the long time it takes for plants to accumulate enough metals, limited plant species that are effective at accumulating metals, potential toxicity of metals to the plants and surrounding environment, and the need for large amounts of land to grow these plants.
