1290 questions and answers in this section
Explain why has the drift of the continents shaped the global geography?

Explain why has the drift of the continents shaped the global geography?

The Earth's surface is divided into large puzzle pieces called tectonic plates. These plates move slowly but constantly (only a few centimeters per year) due...

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Explain why can the wind make a windmill turn?

Explain why can the wind make a windmill turn?

Wind is simply the movement of air from an area of high pressure to another where the pressure is lower. When this moving mass of...

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Explain why bananas turn black as they age?

Explain why bananas turn black as they age?

When a banana ripens, its cells begin to break down slowly. Gradually, an enzyme called polyphenol oxidase (PPO) comes into contact with certain compounds called...

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Explain why tree roots can crack concrete.

Explain why tree roots can crack concrete.

As they grow, tree roots constantly seek water and nutrients, spreading gradually in all directions. This growth occurs slowly but with consistent pressure. The problem...

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Explain why the French aerospace base is located in Kourou?

Explain why the French aerospace base is located in Kourou?

Kourou is located on the northeast coast of South America, an ideal situation as it faces the Atlantic Ocean. This position allows rockets to launch...

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Explain why a small bottle can hold a large amount of air?

Explain why a small bottle can hold a large amount of air?

When we talk about gases like air, two things are closely related: volume and pressure. Air, primarily made up of constantly moving molecules, naturally occupies...

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Explain why airlines ask passengers to turn off electronic devices during takeoff and landing ?

Explain why airlines ask passengers to turn off electronic devices during takeoff and landing ?

Our electronic devices — phones, tablets, laptops — emit weak electromagnetic waves. Individually, a single smartphone is not worrying. The concern arises when hundreds of...

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Explain why is sea water salty?

Explain why is sea water salty?

It all starts from the earth rocks: rain falls, it gently flows and wears down these rocks along the way, carrying away minerals. These minerals...

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Explain why do giant waves suddenly form in the open sea?

Explain why do giant waves suddenly form in the open sea?

Strong storms offshore sometimes create a mess of huge waves. The strong wind continuously blows over the water, transferring its energy to the waves and...

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Explain why some sounds annoy us more than others?

Explain why some sounds annoy us more than others?

When a sound reaches our ear, the outer ear captures this vibration and directs it toward the eardrum, a kind of membrane sensitive to air...

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