Static GK decides the General Awareness score in SSC CGL. Of the 25 questions in Tier-I and the 25 in Tier-II Paper-I, most come from Indian Polity, History, Geography, the Economy and General Science, the areas the CGL 2026 notice lists as History, Culture, Geography, Economic Scene, General Policy and Scientific Research relating to India and its neighbouring countries. Polity questions ask about articles, parts and schedules of the Constitution, amendments, the President, Parliament, the Supreme Court and constitutional bodies. History covers the Indus Valley, the Mauryas and Guptas, the Delhi Sultanate and Mughals, and the freedom struggle from 1857 to 1947. Geography asks about rivers, soils, climate, national parks, minerals and world physical features. The Economy part asks about budget terms, the RBI, banking and basic concepts. General Science is school-level Physics, Chemistry and Biology. This page holds GK24's topic-wise GK notes for SSC CGL, written as short facts and tables so a topic can be revised in one sitting. Read a topic, then solve its previous-year questions and quiz on this site to check what you retained.
Madhubani painting is a folk art tradition of which state?
Madhubani painting, also called Mithila painting, belongs to the Mithila region of north Bihar around Madhubani, Darbhanga and Sitamarhi, and is also practised in the Terai of Nepal.
Read the full explanation →Which instrument is used for the detection and measurement of radiation?
A Geiger-Muller counter contains a gas-filled tube in which an entering ray ionises the gas and sets off a pulse of current, so each pulse counts one particle; a film badge worn by a worker records the total dose instead.
Read the full explanation →The half-life of iodine-131, the isotope released in reactor accidents, is about:
Iodine-131 has a half-life of roughly eight days, which is why the danger from it after an accident is intense but short-lived, and why potassium iodide tablets are distributed at once so that the thyroid gland is saturated with ordinary iodine and absorbs less of the radioactive form.
Read the full explanation →The Chernobyl nuclear disaster, the worst accident in the history of nuclear power, occurred in which year?
Reactor number four of the Chernobyl plant, in Ukraine in the then Soviet Union, exploded on 26 April 1986 and scattered radioactive iodine, caesium and strontium over a wide area of Europe.
Read the full explanation →The SI unit of radioactivity is:
The becquerel, symbol Bq, is the SI unit of activity and equals one disintegration per second.
Read the full explanation →Strontium-90, released by nuclear fallout, is dangerous mainly because it accumulates in the:
Strontium lies just below calcium in the same group of the periodic table and behaves chemically like it, so strontium-90 taken in through milk, water or food is deposited in bone and in teeth in place of calcium.
Read the full explanation →Which device is used in industry mainly to control thermal pollution?
A cooling tower releases the heat of used cooling water to the atmosphere by evaporation or by air flow, so that the water leaving the plant is close to the temperature of the receiving river or lake.
Read the full explanation →Which of the following is the largest source of thermal pollution of surface water?
Thermal and nuclear power stations draw large volumes of water to condense steam and return it several degrees warmer, which makes them the single largest source of waste heat in rivers, lakes and coastal waters.
Read the full explanation →The immediate harmful effect of thermal pollution on a water body is:
The solubility of a gas in water decreases as the temperature of the water rises, so hot water discharged from a power station holds less dissolved oxygen.
Read the full explanation →A silence zone under the noise rules extends up to how far around a hospital, an educational institution or a court?
The Rules define a silence zone as the area up to 100 metres around a hospital, an educational institution or a court, and such an area has to be declared by the competent authority.
Read the full explanation →Under the Noise Pollution Rules, the permissible day-time noise limit for a residential area is:
The Rules of 2000 lay down 55 decibel as the day-time limit and 45 decibel as the night-time limit for a residential area.
Read the full explanation →The Noise Pollution (Regulation and Control) Rules in India were notified in which year?
The Noise Pollution (Regulation and Control) Rules were notified in the year 2000 and they were framed under the Environment (Protection) Act, 1986.
Read the full explanation →Noise pollution is measured in -
The decibel, written dB, is the unit in which the intensity level of sound is expressed, and it is named after Alexander Graham Bell.
Read the full explanation →National Youth Day is celebrated on 12 January every year as the birth anniversary of:
Born on 12 January 1863 at Kolkata, he represented Hinduism at the Parliament of the World's Religions in Chicago in 1893 and founded the Ramakrishna Mission in 1897; his birthday has been observed as National Youth Day since 1985.
Read the full explanation →Good Governance Day is observed on 25 December, the birth anniversary of:
Born on 25 December 1924, he served three terms as Prime Minister, and the day is observed as Good Governance Day; his memorial in Delhi is named Sadaiv Atal.
Read the full explanation →Martyrs' Day, Shaheed Diwas, is observed on 30 January to mark the death anniversary of:
Gandhi was assassinated on 30 January 1948 at Birla House in Delhi, and the day is observed every year as Martyrs' Day, with two minutes of silence at eleven in the morning.
Read the full explanation →Kisan Ghat in Delhi is the samadhi of which former Prime Minister?
Known as the champion of the peasantry, he served as Prime Minister and his memorial in Delhi is named Kisan Ghat; his birthday, 23 December 1902, is observed across the country as Kisan Diwas or Farmers' Day.
Read the full explanation →Teachers' Day in India is observed on 5 September, the birth anniversary of:
Born on 5 September 1888, he was a philosopher and teacher before becoming the first Vice President and the second President of India, and when his students wished to celebrate his birthday he asked that it be kept as Teachers' Day instead.
Read the full explanation →Chaitya Bhoomi, where lakhs of people gather on 6 December every year, is located in:
Chaitya Bhoomi, at Dadar on the sea front in Mumbai, is the place where Dr. B. R. Ambedkar was cremated after his death on 6 December 1956, and his followers gather there in lakhs on Mahaparinirvan Diwas.
Read the full explanation →Shakti Sthal and Vir Bhumi in Delhi are the memorials of, respectively:
Shakti Sthal, the place of power, is the samadhi of Indira Gandhi, who was assassinated on 31 October 1984, and Vir Bhumi, the land of the brave, is the samadhi of Rajiv Gandhi, who was assassinated on 21 May 1991, a day now observed as Anti-Terrorism Day.
Read the full explanation →