1295 questions and answers in this section
Explain why some marine animals produce light?

Explain why some marine animals produce light?

Some marine animals use bioluminescence as a kind of light trap. Just like a bright sign attracting curious customers, they light up their bodies or...

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Explain why the Aztecs used terrace agriculture techniques.

Explain why the Aztecs used terrace agriculture techniques.

The Aztecs lived in a mountainous region with many hills and valleys. It was not easy to plant corn or beans on steep slopes. So...

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Explain why the deep sea abysses harbor bioluminescent animals?

Explain why the deep sea abysses harbor bioluminescent animals?

In depth, sunlight barely penetrates: at about 200 meters, it is completely dark, and this is what is called the aphotic zone. At these depths, animals must...

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Explain why underground caves form and how they evolve.

Explain why underground caves form and how they evolve.

Caves are formed when rainwater, slightly acidic, seeps through rock for a long time. This water slowly dissolves certain rocks, especially those composed of limestone, giving rise...

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Explain why the Southern Ocean is one of the loudest places on the planet?

Explain why the Southern Ocean is one of the loudest places on the planet?

The Southern Ocean is far from silent, with a constant natural racket that mainly comes from marine animals, violent winds, and storms, as well as...

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Explain why did ancient Mediterranean civilizations worship the stars?

Explain why did ancient Mediterranean civilizations worship the stars?

The celestial bodies were observed very closely because they clearly dictated the daily life in the ancient Mediterranean. The Sun indicated when to start and...

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Explain why geologists study rock layers to understand the history of the Earth.

Explain why geologists study rock layers to understand the history of the Earth.

The layers of stacked rocks, or strata, are somewhat like the pages of a book that tell the story of our planet. Each stratum corresponds...

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Explain why snow crunches underfoot?

Explain why snow crunches underfoot?

Snow is made up of small ice crystals assembled together, forming a complex structure filled with air. These crystals, often in the shape of six-branched...

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Explain why hummingbirds don't collide in mid-air flight?

Explain why hummingbirds don't collide in mid-air flight?

Hummingbirds have developed a truly unique anatomy that prevents them from crashing into everything and anything. They possess special wings, with a very particular shape...

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Explain why the Titanic sank so quickly?

Explain why the Titanic sank so quickly?

The hull of the Titanic was constructed from steel and wrought iron, materials that seemed solid at the time but actually had hidden weaknesses. The...

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