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Contemporary India 2 | NCERT Class 10 Geography
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Daily Life Items Made of Metals

1. Common Household Items Made of Metals

  • Kitchenware: Pots, pans, spoons, knives, and forks (often made from stainless steel or aluminum). ๐Ÿณ๐Ÿฝ๏ธ
  • Furniture: Metal bed frames, chairs, tables, and wardrobes (commonly made from iron, steel, or aluminum). ๐Ÿ›๏ธ๐Ÿช‘
  • Appliances: Fridges, washing machines, microwaves, and toasters (manufactured using steel, copper, and aluminum). ๐Ÿงบ๐Ÿž
  • Electrical items: Light bulbs, electrical wires, and plugs (containing copper, aluminum, and other metals). ๐Ÿ’ก๐Ÿ”Œ
  • Tools: Hammers, screws, nails, and scissors (made from steel, iron, or aluminum). ๐Ÿ”จ๐Ÿ› ๏ธ
  • Vehicles: Cars, bikes, bicycles, and other forms of transportation (constructed using a variety of metals such as steel and aluminum). ๐Ÿš—๐Ÿšฒ

2. Sources of Metals

  • Minerals are naturally occurring substances that contain metals, and they are extracted through mining. ๐ŸŒโ›๏ธ
  • Iron ore is the source of iron, which is widely used in construction and tools. โ›“๏ธ๐Ÿ”ฉ
  • Bauxite is the mineral from which aluminum is extracted. โš™๏ธ๐Ÿšš
  • Copper is obtained from copper ores, which are widely used in electrical wiring and coins. ๐Ÿช™๐Ÿ’ก
  • Gold and silver come from gold and silver ores, often used in jewelry and currency. ๐Ÿ’๐Ÿ’ฐ

3. Minerals in Daily Life

  • Transportation: Trains, cars, buses, and airplanes are all made of metals derived from minerals, and they run on power resources from the earth. ๐Ÿš†โœˆ๏ธ
  • Infrastructure: Buildings, bridges, and roads are constructed using metals like steel, which comes from mineral sources. ๐Ÿ—๏ธ๐Ÿ™๏ธ
  • Food: Even the food we consume contains minerals essential for human nutrition, such as iron in leafy vegetables, and zinc in nuts and seeds. ๐Ÿฅ—๐Ÿด

4. Historical Use of Minerals

  • Cultural and Ceremonial Uses: Throughout history, humans have used metals for decoration, religious rites, and festivities. ๐Ÿ•ฏ๏ธ๐ŸŽ‰
  • Economic Development: Minerals have been essential for human development, from basic tools to complex machinery used in modern industry. ๐Ÿ”งโš™๏ธ

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Bright Smile from Toothpaste and Minerals

1. Minerals Used in Toothpaste

  • Abrasive Minerals: These minerals help clean the teeth effectively by scrubbing away plaque and debris. Common abrasive minerals include:
    • Silica: Found in sand, quartz, and clay. ๐Ÿ–๏ธ
    • Limestone: A sedimentary rock that is rich in calcium carbonate. โ›๏ธ๐Ÿ”๏ธ
    • Aluminium Oxide: Found in bauxite, which is the primary source of aluminum. ๐Ÿ”ฉ
    • Phosphate Minerals: Found in phosphate rock, commonly used in fertilizers and toothpaste. ๐ŸŒ
  • Fluoride: Helps in the prevention of cavities by strengthening tooth enamel. It is derived from the mineral fluorite, also known as fluorspar. ๐Ÿ’ง
  • Titanium Oxide: Used to give toothpaste a white color, it comes from minerals like rutile, ilmenite, and anatase. ๐ŸŒŸ
  • Sparkle from Mica: Mica gives a shiny effect in some toothpastes, and it is a mineral that can be found in igneous and metamorphic rocks. โœจ

2. Materials in Toothbrushes and Tubes

  • Toothbrushes and toothpaste tubes are made from plastics, which are derived from petroleum. ๐Ÿฆท

3. Where Are These Minerals Found?

  • Silica: Found in sand, quartz, and sandstone, and is abundant in places like Brazil, India, and Australia. ๐ŸŒ
  • Limestone: Common in regions like India, USA, and China, and is often quarried from hills and mountains. ๐Ÿž๏ธ
  • Aluminium Oxide: Derived from bauxite, found primarily in countries like Australia, Brazil, and Guinea. ๐Ÿž๏ธ
  • Fluorite (Fluoride): Mined in countries like China, Mexico, and South Africa. โš’๏ธ
  • Titanium Oxide: Extracted from rutile and ilmenite in countries like Australia, South Africa, and China. ๐ŸŒ
  • Mica: Mined from countries like India, China, and Russia. ๐Ÿž๏ธ

Minerals in Everyday Life and Health

1. Role of Minerals in Life Processes

  • Vital for Life: Although minerals make up only 0.3% of our nutrient intake, they are essential for life processes, enabling us to use the other 99.7% of the food we consume. ๐ŸŒฑ
  • Essential for Health: Minerals like calcium, iron, magnesium, potassium, and zinc are crucial for the body’s metabolism, muscle function, and nerve transmission. ๐Ÿ’ช๐Ÿง 
  • Absorption of Nutrients: Minerals play a key role in helping the body absorb and utilize other nutrients, including vitamins and proteins. ๐ŸŽ๐Ÿฅฆ

2. Minerals in Light Bulbs

  • Materials Used: Light bulbs are made using various minerals and materials:
    • Tungsten: Used for the filament, as it has a high melting point. ๐Ÿฎ
    • Glass: Made from silica and sodium carbonate. ๐Ÿ”ฎ
    • Phosphor: Some light bulbs, like fluorescent ones, contain phosphor minerals that help produce light. ๐Ÿ’ก
  • Where These Minerals Are Found:
    • Tungsten: Mined in countries like China, Russia, and Canada. โ›๏ธ
    • Silica: Found in sand and quartz, prevalent in many parts of the world. ๐Ÿ–๏ธ
    • Phosphor: Extracted from phosphate rock, which is abundant in countries like Morocco and China. ๐ŸŒ