SSC GD Constable GK Questions 2026

Filariasis is caused by the thread-like nematode Wuchereria bancrofti, which is carried by the Culex mosquito.

Vitamin A is used to make rhodopsin, the pigment of the rod cells of the retina that allows sight in dim light, so a shortage of it makes a person unable to see properly at dusk or in a dark room.

Vitamin C, or ascorbic acid, is needed to make collagen, the protein that holds tissues together, so its absence weakens the gums and blood vessels and delays the healing of wounds.

This mosquito, marked by white stripes on a dark body, bites during the day and breeds in clean stored water in coolers, tyres and flower pots, which is why dengue control campaigns concentrate on emptying household containers.

Four species of Plasmodium commonly infect human beings, of which Plasmodium falciparum is the most dangerous and Plasmodium vivax the most widespread in India.

Rust of wheat is indeed a fungal disease, caused by species of Puccinia, and it is named from the reddish brown spores that appear in streaks on the leaves and stem.

Bacillary dysentery, also called shigellosis, is caused by bacteria of the genus Shigella, which invade the lining of the large intestine and produce frequent stools with blood and mucus, along with fever and cramps; it spreads through contaminated water and food.

Escherichia coli is a bacterium whose harmful strains reach the body through drinking water or food contaminated with sewage, and the infection they produce shows itself as diarrhoea and abdominal pain, which places it among the classic water-borne illnesses along with cholera, typhoid and hepatitis A. Option A is wrong…

The calm centre of a cyclone is called the eye of the storm, a roughly circular area twenty to fifty kilometres across where the air sinks, the winds are light and the sky can even be clear.

The Indian National Army took 'Ittehad, Etmad, Qurbani' as its motto, and those three words mean unity, faith and sacrifice.

Gandhi gave the famous call of Do or Die on 8 August 1942 at the Gowalia Tank maidan in Bombay, the day the All India Congress Committee passed the Quit India resolution.

Curium is a radioactive man-made element with the symbol Cm and atomic number 96.

Milk is an emulsion because it is tiny drops of liquid fat spread through water, and an emulsion is a colloid in which one liquid is dispersed in another liquid.

An ordinary incandescent bulb is filled with an unreactive gas, nitrogen usually mixed with argon, so that the white-hot tungsten filament does not burn away.

Capra hircus is the scientific name of the domestic goat, in which Capra is the genus and hircus the species, written in the two-word form that Carl Linnaeus gave to biology.

A suspension is a heterogeneous mixture because the particles of the solute are large enough to be seen, they do not dissolve, they settle when the mixture is left standing and they can be separated by filtering.

The earthworm is called the farmer's friend because its work keeps soil fit for crops. As it burrows it loosens the soil and lets air and water reach the roots, and the castings it leaves behind are rich in nitrogen, phosphorus and potash, so the topsoil is steadily renewed.

The engineer Kanwar Sain conceived the plan in 1948 of carrying the surplus water of the Sutlej and the Beas into the Thar desert, and the canal was taken up on his design.

Tube wells irrigate the largest share of the net irrigated area of Rajasthan, and groundwater drawn through tube wells and wells together waters the greater part of the state's fields.

Mawat is the local name in Rajasthan and the neighbouring plains for the light winter rain brought by western disturbances.