Sharing my general knowledge

Hello dear friends...
Greetings to you all, hope you all are doing good,
I'm so delighted to participate on this wonderful contest organized by @sahar78 in this great community of Steem For Pakistan, before then I would like to invite @owulama @dave-hanny and @joan-na to also share their view on general Knowledge.

When mars was destroyed?

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Answer; Scientifically 4 billions years ago,

Theories and researchers have shown that mars has been destroyed about 4 billions years ago due to some important climate conditions or changes, that led to the rapid loss of it's magnetic field and atmospheric environment also with the volcanic eruptions that actually cover the planet, with these occurrences tend to make the planet indeed not habitable for living creatures but they do not destroy the planet itself completely, in this regards the mars has become mere subject for scientific researches and discovery.

What is Albert Einstein major contribution?

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Albert Einstein (1879 to 1955) is known to be one of the prolific German born physicist who is actually for revolutionization that has shaped our understanding of the universe, he is highly regarded as a pioneering figure in the world of physics and beyond.

His major contributions are as follows;

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• The Famous Equation; E=mc²: Is extracted from his theory of relativity, and perhaps this equation specify that...mass [m] and of course energy [E] are highly equivalent and can certainly be converted into one another because of the significant speed of light (c) serving as the conversion factors,

• Theory of Relativity; This is another important and most popular Albert Einstein's contribution, that actually revolutionized our understanding of time, gravity and space, and this special theory of relatively was introduced in the year 1905.

• Another important contributions is the photoelectrical effect; This Albert Einstein's contributions attracted wide broadly understanding of the photoelectric effect in (1905) that practically led to the development of quantum mechanics and groundbreaking contribution that earned him a prestigious Nobel prize in physics in the year 1921.

Albert Einstein's contributions has significantly improved our understanding of the universe, time, matter and space, thereby Leaving an inedible mark on a wide range of fields from modern physics and astronomy to engineering and beyond, Others contributions includes unified field theories, Brownian motion, etc.

How many countries are in whole map of world?

Answer; 195 countries

This total number is known and recognized by the famous United Kingdom (UN).

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• 193 Member States

• 2 are observer States which includes the Holy See and Palestine

• 1 non-member state which is The Island of Taiwan officially known as the Republic of China.

    _Now;_
  

• Africa: 54 countries, ⬇️

• Asia: 49 countries,

• Europe: 44 countries,

• North America: 23 countries,

• South America: 12 countries,

• Oceania: 14 countries,

Note; these number of countries depends on the method or criteria that were used in the selections.

Thank you for reading through my post.

@ibraheem75