1290 questions and answers in this section
Explain why mantis shrimps can strike as fast as bullets?

Explain why mantis shrimps can strike as fast as bullets?

Mantis shrimp possess incredibly specialized raptorial appendages, which are like tightly coiled spring-like arms. They store their muscular energy in these limbs, just like one...

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Explain why do koalas sleep so much?

Explain why do koalas sleep so much?

Koalas have a particularly slow metabolism, meaning they burn their energy very slowly. The reason: their ultra-specialized diet consisting exclusively of eucalyptus leaves, a plant...

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Explain why ice is slippery?

Explain why ice is slippery?

Contrary to what is sometimes believed, ice is not inherently slippery on its own: it is mainly due to a very thin layer of liquid...

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Explain why lichens are good indicators of pollution?

Explain why lichens are good indicators of pollution?

Lichens are highly sensitive to pollutants due to their very simple structure: they lack roots, protective cuticles, and any complex tissues like those of typical...

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Explain why do tomatoes wilt in the refrigerator?

Explain why do tomatoes wilt in the refrigerator?

Refrigeration leads to a slowing down and then a sudden halt of the tomato's natural chemical reactions. This cold stops the activity of volatile compounds, those small...

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Explain why can underwater volcanoes create new islands?

Explain why can underwater volcanoes create new islands?

Beneath the oceans, the earth's crust is in constant motion due to the movement of tectonic plates. When two plates move apart, it creates fissures...

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Explain why the chemical composition of rocks can vary significantly at different depths of the Earth's crust?

Explain why the chemical composition of rocks can vary significantly at different depths of the Earth's crust?

The chemical composition of rocks varies greatly as you go deeper beneath the Earth's crust because several factors come into play. First, at different depths, temperatures and...

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Explain why Mount Fuji is considered sacred in Japan?

Explain why Mount Fuji is considered sacred in Japan?

For the Japanese, Mount Fuji is not just a beautiful mountain; it is a true deity called kami. In Shinto tradition, the goddess Konohanasakuya-hime, the...

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Explain why water swirls as it drains in a sink?

Explain why water swirls as it drains in a sink?

When water flows down a sink, it often takes a swirling trajectory instead of falling straight down. This whirlpool is mainly due to the conservation...

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Explain why a glass of water appears distorted underwater?

Explain why a glass of water appears distorted underwater?

When light passes from a transparent medium like air to another medium with a different density, such as water or glass, it suddenly changes direction: this is...

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