Daily Quiz: UPSC Prelims Marathon – May 24, 2018

Polycarbonate is a versatile, tough plastic used for a variety of applications, from bulletproof windows to compact disks (CDs). The main advantage of polycarbonate over other types of plastic is unbeatable strength combined with light weight, polycarbonate is nearly unbreakable

A simple machine is a mechanical device that charges the direction or magnitude of a force. A simple machine helps a person in doing the same amount of work, with less force, for example, with the help of wheel one-can do more work by applying less force.

Water from a shallow hand pump is likely to be contaminated with disease causing bacteria and virus and may cause cholera, jaundice and typhoid where as from the deeper layers of the earth contain fluorine. Excess intake of fluorine leads to mottled teeth , stiffened brittle bone and joints.

Milk is considered as complete food because it contains majority of the essential minerals and nutrients except Vitamin C, Major constituents are Carbohydrate, Proteins, Vitamin (A, D, E, K, B1, B2, B6, B12) , Minerals (Potassium, Calcium, Chloride, Phosporus, sodium, Sulphur, Magnesium and Iron)

Mustard gas was first chemical weapon used in first world war by Germany at the battle of Ypres( Belgium)

DNA finger printing is a genetic diagnostic technique also known as DNA typing in which specific repeatable sequence of DNA bases to identified, analyzed and imaged . the repeatable sequences of DNA base pattern do not , however give an individual “fingerprint” but they are able to determine weather two DNA samples are from the same person , related people, or non- related people. DNA fingerprinting is currently used both for identifying paternity or maternity and for identifying criminals or victims.

Yellow cake is milled uranium oxide, known to chemists as u308. Yellowcake is a first step toward enriched uranium.