scientist, discoveries & inventions MCQ section 4 MCQ Questions & Answers Detailed Explanation

Answer: (d)

Tim Berners-Lee is a British computer scientist and the inventor of the World Wide Web.

He made a proposal for an information management system in March 1989, and on 25 December 1990, with the help of Robert Cailliau and a young student at the European Organization for Nuclear Research (CERN), he implemented the first successful communication between a Hypertext Transfer Protocol (HTTP) client and server via the Internet.

Answer: (a)

Araneology is a branch of zoology that deals with the study of spiders. It is a branch of Arachnology, the scientific study of spiders and related animals such as scorpions, pseudo-scorpions, and harvestmen, collectively called arachnids.

Answer: (c)

Answer: (c)

Cement is a binder, a substance that sets and hardens independently, and can bind other materials together.

The word “cement” traces to the Romans, who used the term opus caementicium to describe masonry resembling modern concrete that was made from crushed rock with burnt lime as a binder.

Joseph Aspdin was a British cement manufacturer who obtained the patent for Portland cement on 21 October 1824.

Answer: (c)

The Beaufort scale is an empirical measure for describing wind velocity based on observed sea conditions. The scale was devised in 1805 by Irish-born Francis Beaufort (later Rear Admiral Sir Francis Beaufort), a Royal Navy officer, while serving in HMS Woolwich.

Answer: (c)

Though Gregor Mendel (1822–1884) first suggested the existence of discrete inheritable units, he did not use the term gene.

Gene was coined in 1909 by Danish botanist Wilhelm Johannsen to describe the fundamental physical and functional unit of heredity. The related word genetics was first used by William Bateson in 1905.