Explanation

Greenland is the world's largest island.

Greenland is an island country in North America

Area: 2.131 million km²

Max width: 1,050 km

Home to 56,000 people, Greenland has its own extensive local government

Greenland is part of the Kingdom of Denmark.

Greenland is located between the Arctic and Atlantic oceans, east of the Canadian Arctic Archipelago

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Nauru is the first smallest island in the world

Explanation

First Largest Continents by area: Asia,

Second Largest Continents by area: Africa,

Third Largest Continents by area: North America,

Fourth Largest Continents by area: South America,

Fifth Largest Continent by area: Antarctica,

Sixth Largest Continent by area: Europe,

Smallest Continents by area: Australia.

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The continent of Africa is called the Dark Continent.

 Zealandia is considered as 8th Continent

Australia is the flattest Continent

Africa Continent has the highest number of Countries

Explanation

The charge on an electron is -1.602176634 × 10⁻¹⁹ Coulombs (C).

This fundamental quantity is known as the elementary charge, and it represents the smallest unit of naturally occurring electric charge. The sign is negative, while a proton has an identical but positive elementary charge. 

Explanation

- Molar mass of NH₄NO₃ = 14×2 (N) + 1×4 (H) + 16×3 (O)  

  = 28 + 4 + 48 = 80 g/mol

- Total nitrogen mass = 14×2 = 28 g

- % Nitrogen = (28 / 80) × 100 = 35% (but in many resources 33.5% is taken as approximate due to rounding)

Explanation

There are 4 alphabets between T and Y:

U, V, W, X.

Explanation

If reactants and products do not change over time in a reversible reaction, the reaction is in a state of dynamic chemical equilibrium.

This is a dynamic state because both the forward and reverse reactions continue to occur at equal rates,

This results in constant concentrations of reactants and products, rather than the reactions coming to a complete stop. 

Explanation

Aslam is richer than Akbar. 

اسلم اکبر سے زیادہ امیر ہے۔

"Richer" is the correct comparative form of "rich" used when comparing two people.

Explanation

Definition: The period is the duration of a single oscillation. 

Symbol: It is typically represented by the letter 'T'. 

Units: The standard unit for a period is seconds. 

Relationship with Frequency: Period (T) and frequency (f) are inversely related, meaning: 

T = 1/f

f = 1/T 

Explanation

Centripetal force is the force that makes a body follow a curved path.

F = mv²/r

where F_c is the centripetal force,

m is the mass of the object,

v is the tangential velocity, 

r is the radius of the circular path

Explanation

The main components of cement are limestone, clay, and gypsum

These materials are combined and heated to produce clinker, which is then mixed with gypsum to form cement. 

Limestone: Provides calcium oxide (CaO), which is the primary constituent for cement's strength. 

Clay: Contains silica (SiO2), alumina (Al2O3), and iron oxide (Fe2O3), which are necessary for the cement's hydraulic properties. 

Gypsum: Added to control the setting time of the cement by slowing down the hydration process.