Explanation

Braille is a system that uses combinations of raised dots to spell letters and numbers.

Louis Braille was a French educator and the inventor of a reading and writing system

Braille was blinded at the age of three in one eye

Born: 4 January 1809 Coupvray, France

Died: 6 January 1852 (aged 43) Paris, France

Resting place: Panthéon, Paris Coupvray

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ND4-12-2022

Explanation

Lactometer is used for milk

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A lactometer is an instrument that is used to check for the purity of milk by measuring its density.

 lactometer works on the principle of gravity of milk.

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Explanation

The lowest natural temperature ever directly recorded at ground level on Earth is −89.2 °C

The world record for low temperature was set at Vostok Station, Antarctica, on 21 July 1983.

while

The highest temperature ever recorded on Earth was 136 Fahrenheit (58 Celsius) in the Libyan desert.

Explanation

Time zones of a country include that of dependent territories (except Antarctic claims). France, including its overseas territories, has the most time zones with 12 

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VU CBT FIA PAPER 16-12-2021

AGM 07.5.23

Explanation

Elon Musk pulled out of $44bn deal to buy Twitter on 8 July 2022.

Twitter deal signed on: 25 April 2022

Elon Musk is also: CEO of SpaceX (rocket developer)

Twitter messages are called: Tweets

Logo of Twitter is: Blue Bird

Twitter was launched: 2006

Twitter founders: Evan Williams, Jack Dorsey & Biz Stone

Twitter CEO is: Parag Agrawal

Most followed person on Twitter: Barack Obama (former US president)

Explanation

 South Korea, Venezuela & Uzbekistan never became part of UK.

Pakistan got independence from the UK on 14 August 1947.

Explanation

A group of organisms of one species occupying a defined area is termed a population.

In nature, we rarely find isolated, single individuals of any species.

The total number of people living in an area, city, country, or the world at a specific time is called Population. 

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ND1-2-2023

Explanation

Three of the following four words are alike in a certain way and one is different.

Explanation

In February 2021, Germany declined the license to two firms planning the export of small arms to India due to the Indian army’s poor human rights record in Indian Illegally Occupied Jammu and Kashmir (IIOJ&K).

Though Germany is India’s sixth-largest trading partner

and its largest trading partner from the European Union, it feared that its small arms could be used against the civilian population in IIOJK.

Explanation

The Great Wall of China.

This is mostly referred to the Ming Great Wall, built from 1368 to 1644, measures 8,850 km long.

Great Wall of the oldest of the Chinese Great Walls.

Great Wall of Han dynasty , the longest Great Wall in history.