1274 questions and answers in this section
Explain why temperatures in underground caves are generally stable?

Explain why temperatures in underground caves are generally stable?

The rocks surrounding the caves are often excellent thermal insulators. They are very dense and thick, making them particularly poor conductors of heat, thus significantly...

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Explain why are the shells of mollusks so hard?

Explain why are the shells of mollusks so hard?

The shells of mollusks are like armor. They protect these small creatures from hungry predators. With a hard shell, it's more difficult for a predator...

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Explain why rainbows can sometimes appear as complete circles from an airplane?

Explain why rainbows can sometimes appear as complete circles from an airplane?

When you're on a plane, you are at an altitude much higher than on the ground. And that changes everything when it comes to seeing...

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Explain why do some fish emit electric shocks?

Explain why do some fish emit electric shocks?

Electric fish are fascinating. These aquatic creatures produce electric discharges for various reasons. They possess electrogenic organs, specialized structures for generating electricity. These organs are...

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Explain why are the Iguaçu Falls located at the junction of three countries?

Explain why are the Iguaçu Falls located at the junction of three countries?

Iguazu Falls were formed about 150 million years ago during massive volcanic eruptions. These eruptions produced vast hardened lava flows that formed a powerful basalt...

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Explain why is the Dead Sea so salty?

Explain why is the Dead Sea so salty?

The Dead Sea is located in a region with a very hot and dry climate. As a result, due to these high temperatures and the...

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Explain why some plants accumulate heavy metals?

Explain why some plants accumulate heavy metals?

Some plants have a superpower: phytoextraction. They absorb heavy metals from the soil through their roots. Then, they accumulate them in their leaves. These plants...

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Explain why do some volcanoes deserve the term supervolcanoes?

Explain why do some volcanoes deserve the term "supervolcanoes"?

A supervolcano is simply a volcano of XXL dimensions with such significant explosive potential that it can disrupt the entire planet. To be classified as...

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Explain why are roses one of the most common symbols of love?

Explain why are roses one of the most common symbols of love?

Roses were already associated with love in ancient civilizations, where the Greeks saw them as the favorite flower of Aphrodite, the goddess of love. Later, the Romans...

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Explain why does the Earth's rotation slowly slow down over time?

Explain why does the Earth's rotation slowly slow down over time?

Tidal forces are generated by the gravitational attraction of the Moon on the Earth. This attraction creates giant waves in the oceans, called tides. As...

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