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The non-metal which has a shining Appearance is Iodine.

Mercury is a heavy, silvery-white liquid metal. Compared to other metals, it is a poor conductor of heat, but a fair conductor of electricity.

The magnesium strip burns brightly in the air but continues to burn in the carbon dioxide environment.

This reaction is combustion and oxidation. What’s unusual, however, is that magnesium is reactive enough to be combusted and oxidized in a reaction with carbon dioxide:
2 Mg + CO2 -> 2 MgO + C

Under normal combustion/oxidation circumstances, oxygen is the reactant.
Carbon dioxide fire extinguishers work by smothering a fire in carbon dioxide. This is only an effective means of extinguishing a fire if carbon dioxide itself cannot be used as a fuel source.

An earthing system or grounding system connects specific parts of that installation with the Earth’s conductive surface for safety and functional purposes. The point of reference is the Earth’s conductive surface. The choice of earthing system can affect the safety and electromagnetic compatibility of the installation. Regulations for earthing systems vary considerably among countries, though most follow the recommendations of the International Electrotechnical Commission. Regulations may identify special cases for earthing in mines, in patient care areas, or in hazardous areas of industrial plants.

In addition to electric power systems, other systems may require grounding for safety or function. Tall structures may have lightning rods as part of a system to protect them from lightning strikes. Telegraph lines may use the Earth as one conductor of a circuit, saving the cost of installation of a return wire over a long circuit. Radio antennas may require particular grounding for operation, as well as to control static electricity and provide lightning protection.

Bacteria:

Bacterial cell is a primitive prokaryotic cell that does not contain membrane bound nucleus.
It lacks the cell organelles like mitochondria, endoplasmic reticulum etc.
Its cell wall is made up of mostly peptidoglycan and have flagella for locomotion.
Discovered by: Antonie van Leeuwenhoek discovered bacteria in 1676. He referred to them as dierkens, i.e. small animals or animalcules in English.

The Western blot test separates the blood proteins and detects the specific proteins (called HIV antibodies) that indicate an HIV infection. The Western blot is used to confirm a positive ELISA, and the combined tests are 99.9% accurate.

Denitrification completes the nitrogen cycle by converting nitrate (NO3-) back to gaseous nitrogen (N2). Denitrifying bacteria are the agents of this process.
These bacteria use nitrate instead of oxygen when obtaining energy, releasing nitrogen gas to the atmosphere.
Micrococcus denitrificans, and some species of Serratia, Pseudomonas, and Achromobacter.

The SI unit for measuring an electric current is the ampere, which is the flow of electric charge across a surface at the rate of one coulomb per second.

A voltmeter is connected in parallel with a device to measure its voltage, while an ammeter is connected in series with a device to measure its current.

The voltage in India is 230 volts, alternating at 50 cycles (Hertz) per second.
However, it’s different to the 110-120 volt electricity with 60 cycles per second that’s used in the United States for small appliances.

Also known as Little Silver.
Also known as white gold.
It is also used in laboratories for electrodes.
Platinum is a naturally occurring white metal.

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