Explanation

Kalology is the study of beauty and the ways in which beauty influences society. 

Kalology means حسن اور جمالیات کا مطالعہ

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Explanation

Vitamin K helps to make various proteins that are needed for blood clotting and the building of bones.

Prothrombin is a vitamin K-dependent protein directly involved with blood clotting.

while 

Vitamin C may protect the body against the effects of pollution.

It may also prevent blood clots and reduce bruising.

ND12_8_2023

Explanation

Stainless steel is a alloys that contain a minimum of approximately 11% chromium, a composition that prevents the iron from rusting and also provides heat-resistant properties.

Explanation

Horticulture is the study and practice of cultivating fruits, vegetables, flowers, and ornamental plants.

Including the design and management of gardens.

Explanation

Gamma rays are the highest energy photons, with energies typically above 100,000 electronvolts (eV).

They are a type of electromagnetic radiation, like X-rays and visible light, but with much shorter wavelengths and higher frequencies.

Explanation

Copper, silver, aluminum, gold, steel, and brass are common conductors of electricity.

The most highly conductive metals are silver, copper, and gold

Silver is the first-best conductor of heat.

Copper is the second-best conductor of heat.

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ND30-12-2022

Explanation

Washing soda is also known as sodium carbonate (Na2CO3).

It is used to remove permanent hardness of water.

Permanent hardness is caused by the presence of magnesium and calcium sulfates or chlorides in water, which cannot be removed by boiling.

Washing soda helps to precipitate these minerals, making the water softer.

Explanation

Vitamins B and C are water-soluble vitamins, meaning they dissolve easily in water.

• Vitamin B: Includes several B vitamins (B1, B2, B3, etc.), all of which are water-soluble.
• Vitamin C (Ascorbic acid): Also highly soluble in water.

Explanation

The mercury barometer is the oldest type of barometer.

It was invented by the Italian physicist Evangelista Torricelli in 1643.

Explanation

Biology

Life and living organisms, including their structure, function, growth, evolution, and interaction with their environment.

Geology
The Earth, its materials (rocks, minerals), structure, and the processes that shape it (earthquakes, volcanoes, plate tectonics).

Chemistry

Matter, its properties, how it interacts, combines, and changes (chemical reactions, molecular bonds, atomic structure).

Physics:

The fundamental forces and principles of the universe, such as energy, motion, force, and the nature of matter.