141 questions and answers in this section

Natural Sciences » Oceanography

Explain why is the sea calm by the wind offshore and agitated near the coast?

Explain why is the sea calm by the wind offshore and agitated near the coast?

When the wind blows over the sea, the first factor that influences its agitation is the depth of the water. In the open sea, far...

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Explain why do dolphins and whales sometimes beach themselves?

Explain why do dolphins and whales sometimes beach themselves?

Dolphins and whales have an innate ability to navigate long distances using their sense of direction. However, sometimes this ability can be disrupted by natural...

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Explain why do oceans have different levels of salinity?

Explain why do oceans have different levels of salinity?

Water is constantly in motion through what is called the water cycle, a continuous process of water circulation and recycling on Earth. This cycle involves...

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Explain why do colors appear different underwater?

Explain why do colors appear different underwater?

When light enters the water, it begins to be absorbed by water molecules as soon as it comes into contact with the water surface. Water...

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Explain why tsunami waves are so destructive?

Explain why tsunami waves are so destructive?

Tsunamis, also known as tidal waves in French, are massive marine waves that are often triggered by certain major underwater events. One of the most...

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Explain why do oceans produce the majority of the oxygen on Earth?

Explain why do oceans produce the majority of the oxygen on Earth?

Phytoplankton, composed of marine plant microorganisms, plays an essential role in oxygen production on Earth. These photosynthetic organisms capture atmospheric carbon dioxide to produce organic...

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Explain why can dolphins swim so quickly?

Explain why can dolphins swim so quickly?

Dolphins have an anatomy adapted for speed which allows them to move quickly in water. Their streamlined and hydrodynamic body reduces water resistance, thus facilitating...

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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 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 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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