220 questions and answers in this section

Natural Sciences » Geology

Explain why basaltic columns have such perfect regularity?

Explain why basaltic columns have such perfect regularity?

When a very hot basalt lava flow begins to cool, its volume gradually decreases: this is the famous thermal contraction. The rock slowly loses its...

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Explain why Ramses II was one of the most powerful pharaohs.

Explain why Ramses II was one of the most powerful pharaohs.

Ramses II was a master of military strategy, capable of effectively leading his armies during memorable battles. His most famous confrontation, the Battle of Qadesh, pitted him...

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Explain why cave paintings are so well preserved in prehistoric caves?

Explain why cave paintings are so well preserved in prehistoric caves?

Prehistoric caves offer a hyper-stable environment, with cool and constant temperatures generally around a dozen degrees, regardless of what happens outside. This climatic stability limits...

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Explain why fossils are often found near rivers?

Explain why fossils are often found near rivers?

Rivers continuously transport particles of mud, sand, and small stones. When the current slows down, these materials settle to the bottom and accumulate: this is...

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Explain why landslides frequently occur on steep slopes.

Explain why landslides frequently occur on steep slopes.

On steep slopes, everything is a matter of balance. Gravity, this natural force that pulls materials downward, plays a key role here by constantly pushing...

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Explain why does the Leaning Tower of Pisa lean?

Explain why does the Leaning Tower of Pisa lean?

Initially, the builders planned foundations that were only 3 meters deep, far too light for a marble tower nearly 56 meters tall. The foundations rest...

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Explain why some mountains have very sharp shapes?

Explain why some mountains have very sharp shapes?

Sharp mountains often stem from a very dynamic geological history. Originally, two continental plates violently collide: this is known as tectonic collision. Imagine two enormous...

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Explain why the Persians used qanats for irrigation?

Explain why the Persians used qanats for irrigation?

Ancient Persia was largely dominated by an arid to semi-arid climate, with vast desert or semi-desert regions. The terrain varied from mountain ranges to dry, dusty plains....

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Can you explain why some minerals shine under ultraviolet light?

Can you explain why some minerals shine under ultraviolet light?

When certain minerals are illuminated with ultraviolet (UV) light, some electrons inside receive a significant boost of energy. As a result, they get temporarily projected...

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Can you explain why some mountains contain rose quartz crystals?

Can you explain why some mountains contain rose quartz crystals?

Rose quartz comes from the underground crystallization of silica-rich magma. When this hot magma cools underground, it slowly forms crystals. The cavities or deep cracks...

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