1273 questions and answers in this section
Explain why do artificial satellites remain in orbit around the Earth?

Explain why do artificial satellites remain in orbit around the Earth?

The orbital speed of satellites depends on the delicate balance between the gravitational force exerted by the Earth and the centrifugal force resulting from the...

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Explain why can lightning trigger forest fires?

Explain why can lightning trigger forest fires?

Lightning is intense electrical discharges that occur when there is a lack of insulation in the electrically charged atmosphere. They typically form inside large storm...

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Explain why do underwater divers perceive colors differently depending on the depth?

Explain why do underwater divers perceive colors differently depending on the depth?

Colors appear altered as divers descend into the depths. This alteration is mainly due to the selective absorption of light by water. Short wavelengths, such...

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Explain why do curls naturally form only for certain types of hair?

Explain why do curls naturally form only for certain types of hair?

Curls naturally form in certain types of hair due to the hair's structure. Curly hair has an oval or elliptical shape, causing a natural twist...

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Explain why the cry of whales can travel hundreds of kilometers underwater?

Explain why the cry of whales can travel hundreds of kilometers underwater?

Whales are capable of producing incredibly powerful sounds, called songs, which can travel over long distances underwater. This ability is based on several physiological and...

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Explain why do bath salts fizz in water?

Explain why do bath salts fizz in water?

When effervescent bath salts come into contact with water, they dissolve and cause an acid-base reaction. This reaction is due to the components of the...

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Explain why can some fish survive in very hot or very cold waters?

Explain why can some fish survive in very hot or very cold waters?

Fish have various physiological adaptations that allow them to survive in different aquatic environments. Their gills are the key organ for aquatic respiration, allowing fish...

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Explain why is friction necessary to light a match?

Explain why is friction necessary to light a match?

A match is composed of several essential elements. First, the head of the match is made up of a flammable mixture, often containing potassium chlorate, antimony sulfide,...

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Explain why have some prehistoric paintings survived for millennia in damp caves?

Explain why have some prehistoric paintings survived for millennia in damp caves?

The distance from external elements is a crucial factor in preserving prehistoric paintings in caves. The main reason these works have been able to survive...

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Explain why some species of mushrooms are bioluminescent.

Explain why some species of mushrooms are bioluminescent.

Bioluminescent adaptations in fungi are the result of a complex evolution. Bioluminescent fungi have specialized structures to produce light, called luciferins and luciferases. These chemical...

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