Cómo hacer una concha marina - ¡Sólo añade agua!

The video explores the magical process by which ocean creatures like algae and snails create shells using calcium and carbonate from seawater. It explains how calcium carbonate forms more easily near the surface but dissolves at greater depths. The video also discusses the role of atmospheric gases, particularly carbon dioxide, in affecting ocean chemistry and shell formation. Feedback loops help stabilize ocean chemistry, but excessive carbon dioxide can disrupt this balance, potentially leading to a barren ocean environment.

What two dissolved chemicals do ocean creatures use to form their shells?

• Potassium and Nitrate

• Magnesium and Sulfate

• Calcium and Carbonate

• Sodium and Chloride

Why does calcium carbonate dissolve more easily at greater ocean depths?

• The pressure is higher at greater depths.

• There is less calcium and carbonate saturation.

• The water is more acidic at greater depths.

• The water is warmer at greater depths.

What happens to the solvent depth when the concentration of calcium carbonate in the ocean is high?

• It causes shells to dissolve faster.

• It moves closer to the surface.

• It remains unchanged.

• It moves to a greater depth.

How does an increase in atmospheric carbon dioxide affect carbonate levels in the ocean?

• Carbonate levels fluctuate randomly.

• Carbonate levels remain the same.

• Carbonate levels decrease.

• Carbonate levels increase.

What is the potential long-term effect of increased carbon dioxide on marine life?

• Increased shell formation

• Enhanced coral growth

• Stable marine ecosystems

• Barren ocean surfaces