141 questions and answers in this section

Natural Sciences » Oceanography

Explain why stonefish are so difficult to spot?

Explain why stonefish are so difficult to spot?

These fish possess a stunning ability to perfectly mimic their environment. Thanks to their variable color, their skin blends exactly with the texture of the...

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Explain why are estuaries considered cradles of marine life?

Explain why are estuaries considered cradles of marine life?

Estuaries offer a wide range of very diverse habitats in a small space: mud, sand, reeds, seagrass meadows, and salt marshes. All this diversity attracts...

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Explain why do oceans appear blue from the surface?

Explain why do oceans appear blue from the surface?

When the sun sends its light to the surface of the sea, it is quite an adventure for each ray of light. First, it is...

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Explain why some objects appear heavier underwater?

Explain why some objects appear heavier underwater?

When an object is submerged in water, it receives a kind of "boost" upward: this is Archimedes' principle. This phenomenon exists because water exerts an...

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Explain why some shells produce black pearls?

Explain why some shells produce black pearls?

The black color of pearls mainly comes from a natural substance called melanin. Yes, yes, it's the same molecule responsible for your tanned skin in...

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Explain why waves amplify before reaching the coast?

Explain why waves amplify before reaching the coast?

In the open sea, waves advance carrying energy, but the water itself moves little. When they reach the coast, the seabed rises, the depth decreases, and everything...

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Explain why oceans are salty but lakes are fresh?

Explain why oceans are salty but lakes are fresh?

The salt in the oceans primarily comes from land rocks. Over time, rain and rivers wear down these rocks, which contain numerous minerals, including salt, mainly in...

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Explain why abyssal fish have sharp teeth?

Explain why abyssal fish have sharp teeth?

The deep-sea fish have sharp teeth to adapt to their hostile environment and to efficiently capture their prey. In the depths of the oceans, food...

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Explain why waves do not propagate in the same way everywhere in the ocean?

Explain why waves do not propagate in the same way everywhere in the ocean?

Storms, with their powerful winds and sudden changes in atmospheric pressure, generate higher and more energetic waves. When these weather disturbances occur at sea, the...

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Explain why deep sea fish produce their own light in the abyss?

Explain why deep sea fish produce their own light in the abyss?

In the completely dark abyssal depths, light becomes a vital tool for fish to ensure their survival. No sun here, it’s as dark as in...

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