Explanation

• Stream terraces are step-like landforms along river valleys.
• They are formed when a river gains new erosional energy.
• This process is called stream rejuvenation.
• The river cuts downward into its old floodplain, leaving terrace-like steps.
• Common in mature river valley landscapes.

Last verified on 02-05-2026

Explanation

• Thermal infrared remote sensing detects heat (temperature differences) on Earth’s surface.
• It shows how different objects emit or reflect thermal energy.
• Useful in detecting hot and cold areas clearly.
• Commonly used in weather studies, geology, and environmental monitoring.

Last verified on 02-04-2026

Explanation

• Hagia Sophia is located in Istanbul, Türkiye.
• It was completed in AD 537 during the Byzantine era.
• Originally, it was a Greek Orthodox church.
• Later, it was converted into a mosque, then a museum.
• In 2020, Hagia Sophia was reconverted into a mosque.

Last verified on 29-01-2026

Explanation

• Muhammad Ali Jinnah called Kashmir the “life line of Pakistan” due to its water importance.
• All major rivers of Pakistan originate from Kashmir region and Himalayas.
• These rivers are essential for agriculture, drinking water, and electricity (hydropower).
• Without Kashmir water resources, Pakistan’s economy would be seriously affected.
• Hence, Kashmir is strategically and economically very important.

Last verified on 02-05-2026

Explanation

• The biggest development in the 1930s was the misrule of Congress ministries (1937–1939).
• Provinces ruled by Congress: 7 provinces (British India)
• It strengthened the belief in the Two-Nation Theory.
• Muslims felt their rights, culture, and identity were ignored under Congress rule.
• This increased political distance between Hindus and Muslims.
• Muslim League response: Day of Deliverance (1939)

Last verified on 02-05-2026

Explanation

• The demand for separate electorate was raised by the All-India Muslim League in 1906.
• First legal acceptance came in the Indian Councils Act 1909.
• This act is also known as the Morley-Minto Reforms.
• It was implemented on 12 March 1909.

Additional information:

• Introduced separate electorate for Muslims.
• Increased the size of Central and Provincial Legislative Councils.
• Central Council had about 60 total members (approx. structure).
• Around 27 members were elected under the reformed system.
• Provided reserved representation for Muslims through separate voting.

Last verified on 02-05-2026

Explanation

• Zaid bin Harithah is the only Sahabi mentioned by name in Surah Al-Ahzab.
• He was the adopted son of Prophet Muhammad (PBUH).
• Surah Al-Ahzab corrected the concept of adoption in Islam.
• It is the 33rd Surah of the Quran.
• It was revealed in Medina (Madani Surah).
• He is honored as a very close and trusted companion.

Last verified on 02-05-2026

Explanation

• Whales evolved from land-dwelling mammals.
• Their ancestors gradually adapted to aquatic life.
• Over millions of years, they moved from land to sea.
• They developed flippers instead of legs for swimming.
• This is an example of evolution and adaptation.

Last verified on 26-04-2026

Explanation

• Edward Jenner was an English physician and scientist.
• He discovered the first vaccine for smallpox in 1796.
• He observed that milkmaids infected with cowpox were protected from smallpox.
• This led to the development of vaccination (cowpox-based immunity method).
• He is known as the Father of Immunology.

Last verified on 02-05-2026

Explanation

• Corrugated steel roofs reflect most of the Sun’s heat.
• This reduces the amount of heat entering the house.
• Helps keep homes cool in hot climates.
• The shiny/metal surface is good at reflecting radiation.
• Useful in tropical and desert regions.

Last verified on 02-05-2026