Explanation

• Discoverer: Alexander Fleming
• Year of discovery: 1928
• Place: St. Mary's Hospital, London
• First patient treated with penicillin: Albert Alexander
• Date of first treatment: 12 February 1941

Last verified on 01-07-2026

Explanation

• The kidneys purify the blood in the human body.
• They remove waste materials and extra water.
• Kidneys help maintain the body’s chemical balance.
• Each person has two kidneys.
• They produce urine as a waste product.

Last verified on 07-06-2026

Explanation

• The Arctic is the shortest ocean in the world.

Additional information:

• The Pacific is the largest ocean in the world.
• 71% of Earth's surface is covered by ocean.
• The warmest ocean in the world is the Indian ocean.
• The hottest ocean area is the Persian Gulf.
• Diamantina Trench is the deepest place in the Indian ocean.
• Country Jordon has no ocean.

The five major oceans listed by size from largest to smallest are the:

1. The Pacific Ocean
2. The Atlantic Ocean
3. The Indian Ocean
4. The Southern Ocean
5. The Arctic Ocean

Last verified on 07-06-2026

Explanation

• Japan is known as the "Land of the Rising Sun."
• In Japanese, Nihon (日本) or Nippon means "Origin of the Sun" or "Sun's Origin."
• The name reflects Japan's location east of China, where the sun appears to rise.
• Japan is an island country in East Asia.
• It is located in the northwestern Pacific Ocean.

Additional information:

• Capital: Tokyo
• Currency: Japanese Yen (JPY)
• Official Language: Japanese
• Continent: Asia
• Parliament: The National Diet (Diet)
• National Animal: Japanese Macaque (Snow Monkey)

Last verified on 09-07-2026

Explanation

• The Mangla Dam is situated on the Jhelum River.
• It is the seventh-largest dam in the world.
• Construction was started in 1961.
• It was completed in 1967.
• It has 5 tunnels and a power station.

Last verified on 07-06-2026

Explanation

Ethiopia Capital is Addis Ababa.

Ethiopia Currency is Birr.

Ethiopia official language is Amharic.

Ethiopia located is in Continent Africa.

Ethiopia Primary Religion is Islam, Christianity.

Ethiopia Parliament called Federal Council And House Of Representative.

Last verified on 07-06-2026

Explanation

• The SQL command used to retrieve data from a database table is the SELECT statement.
• This command is fundamental to the Data Query Language (DQL) in SQL.

Last verified on 07-06-2026

Explanation

• A Modem (Modulator-Demodulator) converts digital signals into analog signals and vice versa.
• It is used to connect computers to the internet via telephone lines or other networks.

Additional information:

• Switch – connects multiple devices in a network
• Hub – basic network connector
• Repeater – boosts signal strength
• Router – directs internet traffic

Last verified on 19-04-2026

Explanation

• Plan Name: First Five-Year Plan
• Duration: 1955–1960
• Country: Pakistan
• Main Focus: Education, agriculture, industrial development
• Objective: Economic and social development

Additional information:

• First Five-Year Plans (1955–1960)
• Second Five-Year Plans (1960–1965)
• Third Five-Year Plans (1965–1970)
• Fourth Five-Year Plans (1970–1975)
• Fifth Five-Year Plans (1978–1983)
• Sixth Five-Year Plan (1983–88)
• Seventh Five-Year Plan (1988–93)
• Eighth Five-Year Plan (1993–98)

Last verified on 17-05-2026

Explanation

• Sound cannot travel through a vacuum because there are no particles to carry sound vibrations.
• Sound needs a medium such as a solid, liquid, or gas to travel.
• Since space is nearly a vacuum, sound cannot be heard there.
• The speed of sound in a vacuum is 0 m/s.

Additional information:

• Infrasound: Below 20 Hz
• Audible sound: 20 Hz – 20,000 Hz (20 kHz)
• Ultrasound: Above 20 kHz
• Speed of sound in air: 343 m/s
• Speed of sound in water: 1,481 m/s

Last verified on 07-06-2026