RRB Group D GK Questions 2026

Copper turns green because its surface slowly reacts with the air and gets covered by a layer of corrosion products, and that layer is green.

The equator is the latitude of 0 degrees and it runs east to west round the middle of the earth, cutting the globe into two equal halves.

The Prime Minister framed the gold as the outcome of a long career rather than one good day in the ring, and he also wished the boxer well for the endeavours ahead of her.

The boxer closed out the final with a 5-0 scoreline, which the government described as an emphatic victory, and that margin is the reason the win was reported as a dominant one rather than a narrow escape.

Lovlina Borgohain won the gold medal in the women's 75 kg boxing event at the Asian Games, and the weight division is the single detail most likely to be tested, because several Indian boxers compete in neighbouring classes.

The word Neolithic is built from the Greek neos, meaning new, and lithos, meaning stone, so the Neolithic is the New Stone Age.

Mosses, lichens and low shrubs make up the tundra, the treeless cover of the lands around the Arctic Ocean and of high mountain slopes above the tree line.

Dry ice is solid carbon dioxide. At ordinary pressure it does not melt into a liquid at all: it changes straight from solid to gas, a process called sublimation, at about minus 78.5 degrees Celsius.

Litmus is a purple dye taken from lichens, and in the classification used in school science lichens are placed in Thallophyta, the group of simple plants whose body is an undifferentiated thallus with no true root, stem or leaf.

The earliest and by far the longest phase of human prehistory is the Palaeolithic, or Old Stone Age, when people lived by hunting and gathering and used rough, unpolished tools made mostly of quartzite.

The Eastern Railway zone has its headquarters at Fairlie Place in Kolkata, West Bengal. Eastern Railway was created in 1952 out of the eastern part of the old East Indian Railway and a portion of the Bengal Nagpur Railway, which makes it one of the oldest zones of Indian Railways.

In congratulating Harshita Tomar and Shital Verma, the Prime Minister said that with determination and consistency they had taken India onto the podium and had also improved on the earlier showing, which is the detail that gives this bronze its significance.

A skiff is a light and fast sailing boat driven by the wind in its sails and handled by a crew of two, so every skiff class event belongs to sailing.

The two sailed together in the women's skiff event at the Asian Games and finished third for the bronze medal, and the Prime Minister congratulated both by name while noting that they had bettered India's previous performance in the event.

Article 165 of the Constitution provides for an Advocate General for each state as the first law officer of that state.

The Himalayas are the youngest mountains in India. They are fold mountains, thrown up where the Indian plate pushed into the Eurasian plate and crumpled the sediments of the old Tethys Sea between them.

The reverse repo rate is the rate at which the Reserve Bank of India borrows from commercial banks, that is, the rate it pays banks for parking their surplus money with it for a short term.

Phosphorus, sulphur, chlorine and argon all sit in the third period of the periodic table, so their electrons fill the same three shells.

The National Film Awards are organised by the Union Ministry of Information and Broadcasting, which handles films, broadcasting and the press.

Overgrazing is a cause of soil degradation, not a way to conserve soil, so it is the option that does not belong.