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.

Correct Option: B

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.

Charles Babbage was an English mathematician, philosopher, inventor and mechanical engineer who originated the concept of a programmable computer. Considered a "father of the computer", Babbage is credited with inventing the first mechanical computer that eventually led to more complex designs.

Correct Option: C

Charles Babbage was an English mathematician, philosopher, inventor and mechanical engineer who originated the concept of a programmable computer. Considered a "father of the computer", Babbage is credited with inventing the first mechanical computer that eventually led to more complex designs.

A hygrometer is an instrument used for measuring the moisture content in the environment. Humidity measurement instruments usually rely on measurements of some other quantity such as temperature, pressure, mass or a mechanical or electrical change in a substance as moisture is absorbed.

Correct Option: D

A hygrometer is an instrument used for measuring the moisture content in the environment. Humidity measurement instruments usually rely on measurements of some other quantity such as temperature, pressure, mass or a mechanical or electrical change in a substance as moisture is absorbed.

Joseph Aspdin, a British bricklayer from Leeds, is considered to be the originator of Portland cement. A process for the manufacture of Portland cement was patented in 1824. This cement was an artificial cement similar in properties to the material known as "Roman cement.” Aspdin's process was similar to a process patented in 1822 and used since 1811 by James Frost who called his cement "British Cement".

Correct Option: C

Joseph Aspdin, a British bricklayer from Leeds, is considered to be the originator of Portland cement. A process for the manufacture of Portland cement was patented in 1824. This cement was an artificial cement similar in properties to the material known as "Roman cement.” Aspdin's process was similar to a process patented in 1822 and used since 1811 by James Frost who called his cement "British Cement".

The Lumière brothers, Auguste Marie Louis and Louis Jean were the earliest filmmakers in history. The Lumières held their first private screening of projected motion pictures in 1895. Their first public screening of films at which admission was charged was held on December 28, 1895, at Salon Indien du Grand Café in Paris.

Correct Option: B

The Lumière brothers, Auguste Marie Louis and Louis Jean were the earliest filmmakers in history. The Lumières held their first private screening of projected motion pictures in 1895. Their first public screening of films at which admission was charged was held on December 28, 1895, at Salon Indien du Grand Café in Paris.