1273 questions and answers in this section
Explain why some species of fish migrate to warmer waters in winter.

Explain why some species of fish migrate to warmer waters in winter.

The migration of fish is a phenomenon observed in many species, and several reasons explain this behavior. One of the main motivations is the search...

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Explain why do flames dance on a candle?

Explain why do flames dance on a candle?

Thermal convection plays a major role in the movement of a candle flame. When the flame burns, the hot air around it expands and becomes...

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Explain why is sea water dense?

Explain why is sea water dense?

Sea water is a complex solution mainly composed of salt dissolved in water. On average, sea water has a salinity of about 35 grams of...

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Explain why do our fingers leave marks on touchscreen devices?

Explain why do our fingers leave marks on touchscreen devices?

Our fingerprints are formed by the ridges of the skin on our fingers, which are unique to each individual. They are mainly composed of two...

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Explain why Antarctica is the coldest continent on the planet.

Explain why Antarctica is the coldest continent on the planet.

During the austral winter, Antarctica is plunged into a prolonged polar night that can last up to six months. During this period, the sun does...

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Explain why indoor plants improve air quality.

Explain why indoor plants improve air quality.

Indoor plants play an essential role in air purification. They absorb carbon dioxide, releasing oxygen during photosynthesis, a vital process for living beings. In addition, they can...

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Explain why our printers use different colors to produce color images?

Explain why our printers use different colors to produce color images?

Primary pigments are fundamental colors used to create all other shades and hues. Primary pigments vary depending on the color system used. In the RGB...

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Explain why does the wind blow in gusts?

Explain why does the wind blow in gusts?

The gusty wind is largely due to local atmospheric disturbances. Imagine the air as a flowing river. Sometimes there are rocks or branches that create...

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Explain why tropical lagoons have such clear turquoise waters?

Explain why tropical lagoons have such clear turquoise waters?

The turquoise color of the waters of tropical lagoons is due to the presence of specific pigments in the aquatic environment. These pigments, such as...

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Explain why it was previously possible to calculate the diameter of the Earth without going into space?

Explain why it was previously possible to calculate the diameter of the Earth without going into space?

The Greek astronomer Eratosthenes estimated the circumference of the Earth in the 3rd century BCE. He used a simple yet ingenious method by observing the...

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