RRB Group D GK Questions 2026

The Kyoto Protocol was adopted at the third Conference of the Parties held in the Japanese city of Kyoto in 1997, and it came into force in 2005 after enough countries had ratified it.

The United Nations Conference on Environment and Development, popularly called the Earth Summit, produced the Framework Convention on Climate Change along with the Convention on Biological Diversity and Agenda 21.

The two bodies set up the panel in 1988 so that governments would have a single authoritative summary of what science says about climate change.

Carbon dioxide is a greenhouse gas: it lets in the short wave radiation of the sun but absorbs a part of the long wave infrared radiation that the warmed earth sends back, and radiates it downwards again.

Pneumonia is an infection of the lungs in which the alveoli, the tiny air sacs where oxygen passes into the blood, fill with fluid or pus.

The State Emblem of India is adapted from the Lion Capital that crowned Ashoka’s pillar at Sarnath, near Varanasi in Uttar Pradesh.

Kashi, also called Varanasi or Banaras, stands on the left bank of the Ganga in eastern Uttar Pradesh and is among the oldest living cities in the world.

A galvanometer detects whether a current is flowing in a circuit and shows its direction, because its needle moves to one side or the other about a central zero.

The BCG vaccine takes its name from Albert Calmette and Camille Guerin, the two French scientists who developed it from a weakened strain of Mycobacterium bovis.

CH3CH2OH, also written C2H5OH, is ethanol or ethyl alcohol, the second member of the alcohol family. The -OH group attached to the carbon chain is the functional group that makes it an alcohol.

The loo is a hot, dry wind that blows over the plains of north India and Pakistan in May and June, often pushing afternoon temperatures above 45 degrees Celsius and causing heat strokes.

The shehnai is called a mangal vadya, an instrument of auspicious occasions, because it is played at weddings, temple rituals and processions.

After India, Nepal has both the largest number of Hindus and the largest Hindu share of any country, with roughly four out of five Nepalis following the faith.

Pressure is the force acting on unit area, that is P equals F divided by A, so for the same force a larger area of contact means smaller pressure.

Atmospheric pressure at sea level is about 1.013 into 10 to the power 5 pascal, which presses with roughly the weight of one kilogram on every square centimetre of our body, so it is very large and not negligible at all.

Biogas is produced when cattle dung, crop waste and sewage are broken down by bacteria in a closed tank without air, a process called anaerobic digestion.

A dargah is the tomb of a Sufi saint, built over his grave and visited by people of every faith who tie threads, offer flowers and pray for their wishes.

Sulphur dioxide dissolves in water to give sulphurous acid, a weak acid with the formula H2SO3, by the reaction SO2 + H2O to H2SO3.

A magnet cannot be cut into a single north pole and a single south pole.

Loudness and frequency are two different properties of sound. Loudness depends on the amplitude of the vibration, that is how far the vibrating part moves from its rest position, while frequency is the number of vibrations made in one second and is measured in hertz.