Explanation

• The FIFA World Cup 2022 was held in Qatar.
• Argentina won the tournament, defeating France in the final.

Additional information:

• 2010: South Africa
• 2014: Brazil
• 2018: Russia
• 2022: Qatar
• 2026: Canada, Mexico, and the United States
• 2030: Spain, Portugal, and Morocco; Anniversary match hosts: Argentina, Paraguay, and Uruguay
• 2034: Saudi Arabia (Asia)

Last verified on 02-02-2026

Explanation

• The SI unit of electrical resistance is Ohm (Ω).
• It measures how much a material opposes the flow of electric current.
• Higher resistance means less current flows.
• It is defined by V = IR (Ohm’s Law).
• 1 Ohm = 1 Volt per Ampere.

Last verified on 10-06-2026

Explanation

• Transparency International is based/headquarters in Berlin Germany.
• It is a German registered association.
• Founders: Peter Eigen, Olusegun Obasanjo
• Founded: May 4, 1993

Last verified on 17-03-2026

Explanation

• A lactometer is used to measure the purity and density (thickness) of milk.
• It checks if milk has been adulterated with water by measuring specific gravity.
• Works on the principle of buoyancy.
• Pure milk specific gravity: 1.028–1.032 at 15°C

Last verified on 16-03-2026

Explanation

• The ozone layer acts as Earth’s natural sunscreen, protecting life from the sun’s harmful ultraviolet (UV) radiation.
• UV radiation can cause skin cancer, eye damage, and harm to plants and animals.

Additional information:

• Chemical Formula: O₃ (three oxygen atoms)
• Layer Location: Stratosphere, 15–40 km above Earth
• Function: Absorbs UV-B and UV-C rays from the Sun
• Depletion Causes: Air pollution, CFCs, industrial chemicals
• Protection Measures: Reduce CFC use, ozone-friendly products

Last verified on 09-03-2026

Explanation

Prophet Muhammad belonged to the Banu Hashim (Hashimite) clan

Named after his great-grandfather, Hashim ibn Abd Manaf, this clan was part of the Adnani Quraish. 

Tribe: Quraysh

Parents: Abdullah ibn Abd al-Muttalib and Aminah bint Wahb

NOTE:The Banu Hashim held a prestigious position in Mecca, often responsible for providing water to pilgrims at the Kaaba. 

Last updated 18-02-2026

Explanation

A neuron is the basic structural and functional unit of the nervous system

It often shown with a long axon, dendrites, and cell body.

It transmits electrical impulses in the body.

Explanation

• The oesophagus is a muscular tube that connects the pharynx (throat) to the stomach.
• Its main function is to transport food from the pharynx to the stomach through peristalsis (wave-like muscle contractions).

Explanation

Sulfuric acid (H₂SO₄) is called the "King of Chemicals" or "King of Compounds" due to its wide use in industries like fertilizers, batteries, and detergents.

It plays a key role in chemical manufacturing.

It is often used to measure a country's industrial strength.

Explanation

• Red (R) Green (G) and blue (B) colors are known as primary colors of light.
• Because of mixing these three colors we are able to make all possible colors.

Key Point

The primary colors of Pigment is:

• Red
• Yellow
• Blue