Explanation

Twitter is a social network service that allows users to share short messages, known as tweets, and interact with others globally.

Twitter was created in March 2006 by Jack Dorsey, Noah Glass, Biz Stone, and Evan Williams and launched in July of that year.

Explanation

The Soviet Union, officially the Union of Soviet Socialist Republics

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History of the Soviet Union

Background

1917–1927: Establishment (founded)

1927–1953: Stalinism

1953–1964: Khrushchev Thaw

1964–1982: Era of Stagnation

1982–1991: Decline and collapse (dissolved)

A flagship communist state, it was nominally a federal union of fifteen national republics

It was the largest country in the world, covering over 22,402,200 square kilometers (8,649,500 sq mi)

spanning eleven time zones.

Capital and largest city: Moscow

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Leader  

• 1922–1924: Vladimir Lenin

• 1924–1953: Joseph Stalin

• 1953: Georgy Malenkov

• 1953–1964 : Nikita Khrushchev

• 1964–1982: Leonid Brezhnev

• 1982–1984: Yuri Andropov

• 1984–1985: Konstantin Chernenko

• 1985–1991: Mikhail Gorbachev

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Head of state  

• 1922–1946 (first): Mikhail Kalinin

• 1988–1991 (last): Mikhail Gorbachev

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Head of government  

• 1922–1924 (first): Vladimir Lenin

• 1991 (last): Ivan Silayev

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Currency: Soviet ruble (Rbl) (SUR)

ND7-5-2023

Explanation

The key element required for solar energy conversion in most solar cells is silicon

It is the most common semiconductor material: Silicon is used in about 95% of solar cells sold today. 

It is a naturally occurring element: Silicon is the second most abundant element on Earth, after oxygen.

Explanation

Let's solve for x:

6 + 5x = 30 - x

Add x to both sides:

6 + 6x = 30

Subtract 6 from both sides:

6x = 24

Divide both sides by 6:

x = 24/6

x = 4

So, the correct answer is 4.

Explanation

The G-8 (Group of Eight) is an informal grouping of eight major economies.

It does not have a formal headquarters or secretariat.

Explanation

Explanation

The Ravi, Beas, and Sutlej rivers do not enter Pakistan but are instead given exclusively to India under the Indus Waters Treaty of 1960:

• Ravi, Beas, and Sutlej (Given to India)
• Indus, Jhelum, and Chenab (Given to Pakistan)

Panjnad means "five rivers"

Above Mithankot, the Indus River receives from Panjnad 

Panjnad falls in River Indus

The length of Panjnad is: 71 km

The Panjnad Rive is located end of the Bahawalpur 

 Panjnad Headworks has three canals:

1. Panjnad canal
2. Abbassia canal
3. Abbassia link canal

Explanation

A non-terminating, non-recurring decimal cannot be expressed as a fraction.

It is the key characteristic of an irrational number.

Explanation

She assured me of her help.

اس نے مجھے اپنی مدد کا یقین دلایا۔

Here "of" shows that the "help" belongs to "she" (noun).

Explanation

Succeed کامیاب هونا