1273 questions and answers in this section
Explain why convection currents are responsible for the movement of tectonic plates?

Explain why convection currents are responsible for the movement of tectonic plates?

Tectonic plates are fragments of the Earth's lithosphere that rest and move on the asthenosphere, a semi-fluid rock layer located beneath the lithosphere. There are...

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Explain why some rainbows appear in double?

Explain why some rainbows appear in double?

A double rainbow is a fascinating optical phenomenon that occurs when two rainbows appear simultaneously in the sky. To understand this phenomenon, it is essential...

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Explain why does Earth's magnetic field protect the Earth from solar winds?

Explain why does Earth's magnetic field protect the Earth from solar winds?

The Earth's magnetic field is a global magnetic field generated by the movement of liquid iron in the outer core of the Earth. This molten...

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Explain why can algae survive at great depths despite the lack of light?

Explain why can algae survive at great depths despite the lack of light?

Algae that survive at great depths possess photosynthetic pigments adapted to their environment. Unlike terrestrial plants that capture sunlight rich in a wide spectrum of...

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Explain why are thunder echoes louder at higher altitudes?

Explain why are thunder echoes louder at higher altitudes?

When sound propagates at high altitudes, it encounters fewer obstacles to be absorbed. In fact, the air at high altitudes is less dense, which reduces...

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Explain why Neanderthals buried their dead with flowers?

Explain why Neanderthals buried their dead with flowers?

Neanderthals practiced funeral rituals that included the burial of their dead. These burials were often located in caves or rock shelters. The bodies were sometimes...

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Explain why lower sounds travel farther than higher sounds?

Explain why lower sounds travel farther than higher sounds?

The wavelength of a sound is the distance between two successive crests of a sound wave. The larger the wavelength, the lower the sound. Low-pitched...

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Explain why do police radars accurately detect speeding violations?

Explain why do police radars accurately detect speeding violations?

Doppler polarization of radar waves is an important phenomenon in detecting moving objects. When a radar wave is reflected by a moving object, its polarization...

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Explain why do some plants only need very little light to grow?

Explain why do some plants only need very little light to grow?

Plants adapted to low light have specific pigments that help them efficiently capture available light. Among these pigments are chlorophylls a and b, which are...

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Explain why can caves contain stalactites and stalagmites?

Explain why can caves contain stalactites and stalagmites?

Caves are generally formed in areas composed of limestone rocks, such as limestone, dolomite, or marble, which are rocks soluble in water. These rocks are...

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