Static GK is not a separate section in RRB Group D, but it decides most of the paper's recall marks. General Science is 25 questions of Physics, Chemistry and Life Sciences at 10th standard (CBSE) level as per CEN 09/2025, and the 20 General Awareness questions lean on the standing facts behind the news: the sport, the award, the institution, the state, the river or the scientist an event touches. This page holds GK24's topic-wise GK notes for RRB Group D. The General Science notes go topic by topic through motion and force, work, energy and power, gravitation, heat, light, sound, electricity and magnetism, atomic structure and the periodic table, chemical reactions, acids, bases and salts, metals and non-metals, and carbon compounds, and the Life Sciences notes cover cells, the human body, nutrition, diseases, plants and genetics. The static GK notes cover Indian Railways zones and facts, national symbols, first and largest in India and the world, awards and honours, important days, books and authors, sports GK, art and culture, and the basics of Indian Polity, Geography, History and the Economy. Each note is short facts and tables that can be revised in one sitting. Read a note, then solve its quiz and the previous-year questions on this site to check what stayed.
Cocoa, the raw material of chocolate, is produced mainly in which region of the world?
Cote d'Ivoire, Ghana and Nigeria grow most of the world's cocoa, on small farms under shade trees in the hot, wet equatorial belt along the Gulf of Guinea.
Read the full explanation →The Prairies of North America, the Pampas of South America and the Downs of Australia are all famous for the commercial cultivation of which crop?
All three are temperate grasslands with 50 to 75 centimetres of rain, a cool moist growing season and a warm dry harvest, which is exactly what wheat needs, and all three are farmed on large mechanised holdings for export.
Read the full explanation →The Corn Belt of the United States, the great maize-growing region, is centred on which states?
The Corn Belt lies in the central lowland of the United States, where warm summer nights, 50 to 100 centimetres of summer rain and deep well-drained loam suit maize, and most of the crop is fed to pigs and cattle, so the belt is also a livestock and meat region.
Read the full explanation →Hevea brasiliensis, the tree from which natural rubber is tapped, is native to which region?
The rubber tree is native to the equatorial forests of Brazil, and the boom of the nineteenth century made Manaus a wealthy city.
Read the full explanation →Shifting cultivation is known as ladang in which country?
The practice means clearing a patch of forest, burning the slash for ash, cropping it for two or three years until the soil is exhausted and then moving to a fresh patch.
Read the full explanation →The Mesabi Range, the leading iron ore area of the United States, lies close to which of the Great Lakes?
The Mesabi Range in Minnesota lies on the western side of Lake Superior, and the ore is carried by lake steamer to the steel towns of the lower lakes, among them Gary, Cleveland and Pittsburgh, where it meets Appalachian coal.
Read the full explanation →Which city is known as the Manchester of Japan because of its cotton textile industry?
Osaka, in the Kansai industrial region, became the leading cotton textile centre of Japan, helped by a humid climate suited to spinning, a good harbour, cheap labour drawn from the countryside and a large home market, and the comparison with Manchester in England, the original Cottonopolis, is standard in textbooks.
Read the full explanation →The Witwatersrand region of South Africa is famous for the mining of which mineral?
The Witwatersrand basin near Johannesburg has produced a large share of all the gold ever mined, from conglomerate reefs that dip deep underground, and the city of Johannesburg itself grew out of the gold rush of 1886.
Read the full explanation →The Chuquicamata mine is associated with which mineral and country?
Chuquicamata, in the Atacama Desert of northern Chile, is one of the largest open-pit copper mines in the world, and Escondida, in the same desert, is the other name to remember.
Read the full explanation →Ghawar, the largest conventional oil field known in the world, lies in which country?
Ghawar, discovered in 1948 in the eastern province of the kingdom, has been the largest conventional oil field known anywhere, and it is the field most often named in exams along with Safaniya, the biggest offshore field, also Saudi.
Read the full explanation →Kiruna, one of the most famous iron ore mining centres of the world, is located in which country?
Kiruna lies in Swedish Lapland, inside the Arctic Circle, and works a high-grade magnetite deposit of the Baltic Shield. Its ore is carried by rail to Narvik in Norway, an ice-free port warmed by the North Atlantic Drift, and to Lulea on the Gulf of Bothnia.
Read the full explanation →Hirudin, a substance that prevents the clotting of blood, is obtained from which animal?
Its salivary glands secrete hirudin, an anticoagulant that keeps the host's blood flowing while the leech feeds, and the same property made leeches a part of old medical practice and a subject of modern research on blood thinners.
Read the full explanation →In which subphylum of Chordata does the notochord persist throughout life, along the whole length of the body?
In animals such as Branchiostoma, also called Amphioxus or the lancelet, the notochord extends from the head to the tail and remains there for the whole of life, which is why the group is treated as the clearest surviving picture of the basic chordate plan.
Read the full explanation →Which of the following is an egg-laying mammal?
It belongs to the monotremes, the only mammals that lay eggs, the other being the spiny anteater or echidna. The young hatch from the eggs and are then fed on milk from the mother's mammary glands, which is why the animal is still a mammal.
Read the full explanation →Which reptile has a four-chambered heart?
Reptiles in general have a three-chambered heart, with two atria and a ventricle that is only partly divided, so that oxygenated and deoxygenated blood mix to some extent.
Read the full explanation →Cartilaginous fishes such as sharks have to keep swimming because they lack
Bony fishes of the class Osteichthyes fill or empty a gas-filled air bladder and so hover at any depth without effort.
Read the full explanation →Excretion in insects takes place through which structures?
These are fine blind tubules that float in the body fluid of an insect and open into the gut, where they take up nitrogenous waste and pass it out as nearly dry uric acid, so that very little water is lost.
Read the full explanation →Which animal is commonly called the devil fish, though it is not a fish at all?
It belongs to the phylum Mollusca and the class Cephalopoda, so it is a relative of the squid and the cuttlefish rather than of any fish, and the common name devil fish came from its appearance and its eight arms with suckers.
Read the full explanation →Cnidoblasts, the stinging cells used for defence and for capturing prey, are characteristic of which phylum?
Each cnidoblast holds a capsule called a nematocyst with a coiled thread that shoots out and injects a toxin when touched, and it is found in Hydra, the sea anemone, the jellyfish and the corals.
Read the full explanation →Which phylum shows a cellular level of body organisation, with no tissues?
In sponges the cells are arranged loosely and work with a good deal of independence, with collar cells driving water through a canal system and other cells digesting the food particles, so the body never rises to the level of a true tissue.
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