Everyday Science

Deliquescence is the property of a substance to absorb moisture from the air and dissolve in it, forming a liquid solution. This matches the question's description exactly.

Dams serve multiple basic purposes including storing water in reservoirs, generating electricity through hydropower, and controlling floods by regulating water flow. Therefore, all the options listed are correct.

A radiosonde is an instrument carried into the atmosphere usually by a weather balloon that measures temperature, pressure, and humidity at various altitudes. The other options measure different atmospheric parameters but not all three at various altitudes.

Vitamin C is a water-soluble vitamin that is not stored in the body and excess amounts are excreted in urine, unlike fat-soluble vitamins such as Vitamin A. Therefore, Vitamin C is generally excreted in urine.

Places on the Earth's surface that experience equal intensity of an earthquake are connected by lines called isoseismal lines. These lines join points of equal seismic intensity, helping in mapping earthquake impact. Therefore, the correct term related to regions of equal earthquake impact is seismic belts/iso-seismal concept, best matched here by 'seismic belts'.

An extremely small piece of silicon on which integrated circuits are fabricated is called a chip. This is the correct term used in electronics and semiconductor manufacturing.

Option A correctly lists the planets in order from the Sun: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. The other options have planets out of order.

Melanoma, a type of skin cancer, is strongly associated with increased exposure to ultraviolet (UV) radiation, which is more intense due to ozone depletion in the Earth's atmosphere. Ozone depletion reduces the ozone layer's ability to block harmful UV rays, increasing the risk of skin cancer.

Peat is the earliest stage of coal formation and contains recognizable traces of the original plant material, unlike more mature forms such as lignite, bitumen (bituminous coal), or anthracite which have undergone greater coalification.

The large dark patches on the Moon's surface are called 'maria' (singular: mare), which means 'seas' in Latin. They are basaltic plains formed by ancient volcanic eruptions and contain no water, hence the name is historical rather than literal.