Explanation

A closely wound cylindrical coil of insulated wire is called Solenoid.

Solenoid is a cylindrical coil of wire acting as a magnet when carrying electric current.

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Explanation

Wet oxidation is a form of hydrothermal treatment. It is the oxidation of dissolved or suspended components in water using oxygen as the oxidizer.

AGM 25-12-2022

Explanation

The transformer work only on an AC supply

because A transformer needs an alternating current that will create a changing magnetic field

note:

The transformer does not work on DC.

Direct current doesn't have a variable magnetic field

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ND17-1-2023

Explanation

Aluminum is widely used in aircraft manufacturing due to its lightweight and high strength.

It also resists corrosion, making it ideal for aircraft structures.

Explanation

Seismograph: an instrument used to detect and record earthquakes.

Explanation

• Carbon chains make up the skeleton of compounds called In-Organic Compound
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• The chemical formula of carbon dioxide is CO2
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• The molar mass of carbon dioxide is 44.01 g/mol
• The boiling point of carbon dioxide is: -78.46 °C
• The triple point temperature of carbon dioxide is: -56.6 °C
• the carbon dioxide is Soluble in Water
• Classification of carbon dioxide is: Acidic oxide

Explanation

Oxygen and Silicon - the two most abundant elements in the Earth's crust - by clicking on their symbols on the Periodic Table.

Explanation

pair of bio-elements represents the maximum and minimum percentage

• Hydrogen 62.9%
• Oxygen 24%
• Carbon 12%
• Nitrogen 0.6%
• Calcium 0.24%
• Phosphorus 0.14%

Explanation

The incorrect statement is: Metals are dull and soft.

Metals are typically:

• Solid at room temperature
• Have high melting and boiling points
• Good conductors of heat and electricity
• Shiny (although some metals may have a dull appearance due to oxidation or other surface treatments)
• Ductile (can be drawn into thin wires or sheets)
• Malleable (can be pounded into shape without breaking)

Explanation

The cell is the smallest unit of life

The atom is the smallest and most fundamental unit of matter.

It consists of a nucleus surrounded by electrons.