1290 questions and answers in this section
Explain why garlic has such a strong odor?

Explain why garlic has such a strong odor?

Garlic has a strong smell due to a particular family of molecules, the famous sulfur compounds. When garlic is whole and intact, these molecules are...

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Explain why is plankton so important for the ocean?

Explain why is plankton so important for the ocean?

Plankton is essentially the basic food source for a huge part of marine life. Just imagine: it all starts with these tiny plant organisms, phytoplankton. They capture...

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Explain why the town of Geamana (in Romania) was submerged by a toxic lake?

Explain why the town of Geamana (in Romania) was submerged by a toxic lake?

In the 1970s, in Roșia Poieni, Romania targeted the massive exploitation of one of the largest European copper reserves. Under Ceaușescu's regime, the authorities saw...

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Explain why the city of Pompeii was buried under the ashes of Mount Vesuvius.

Explain why the city of Pompeii was buried under the ashes of Mount Vesuvius.

The Vesuvius is a volcano located in southern Italy, near Naples, formed by the phenomenon of subduction. In simple terms, it is the African plate...

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Explain why algae produce oxygen?

Explain why algae produce oxygen?

Algae produce oxygen through photosynthesis, a natural mechanism that simply uses sunlight, carbon dioxide (CO₂), and water to create energy. With the light captured by...

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Explain why coffee is often hotter than the air temperature.

Explain why coffee is often hotter than the air temperature.

Coffee is usually prepared by passing almost boiling water (around 90 to 95°C) through ground coffee. With such a starting temperature, it makes sense that...

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Explain why a strong wind can blow out a candle?

Explain why a strong wind can blow out a candle?

A flame needs oxygen to burn properly, but be careful, too much air at once and it's all over! A strong wind brings a lot...

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Explain why pétanque balls are grooved?

Explain why pétanque balls are grooved?

The grooves on pétanque balls mainly focus on grip, allowing for a good hold to prevent them from slipping between the fingers at the moment...

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Explain why the ocean can be so calm one day and so rough the next day?

Explain why the ocean can be so calm one day and so rough the next day?

The weather plays an essential role in ocean behavior. When the wind blows strong, it pushes the water and creates higher and more powerful waves. Conversely, when...

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Explain why the weather can change so quickly in the mountains?

Explain why the weather can change so quickly in the mountains?

In the mountains, steep terrains tend to slow down, channel, or even lift the air masses arriving from above. When an air mass hits the...

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