And they said, calcium carbonate.

It's not different, it's the same stuff calcium carbonate, calcium carbonate.

And they can pull calcium out of the environment, put down a layer of calcium and then carbonate, calcium and carbonate.

When you evaporate seawater, the first thing to crystallize out is calcium carbonate.

And that builds up on the evaporators and that's what that image on the left is gradually getting encrusted with the calcium carbonate.

It's possible because the mycelium produces oxalic acids, and many other acids and enzymes, pockmarking rock and grabbing calcium and other minerals and forming calcium oxalates.

The main framework material of coral reefs is calcium carbonate.

Reporters understand that adding alginate, humic acid and amino acid nutrient carriers of natural or plant sources into the production process of urea would change modify and enhance the benefit of traditional urea. The alginate urea, zinc fulvate urea and aminoglutanic acid urea nitrogen utilization rate was 5 to 10 percentage points higher than general urea.

And I said, that's what this is this is calcium carbonate.

Oh, by the way, just in case you weren't already guessing, it's calcium carbonate.

So, fungi and mycelium sequester carbon dioxide in the form of calcium oxalates.

And you Like seaweed

There are many organisms that build their shells out of calcium carbonate plants and animals both.

And the fish have grazed the algae, so the turf of algae is a little lower.

Here's some algae in the foreground ...

The things on the ground are algae.

So this is the infamous Caulerpa taxifolia, the so called killer algae.

This is another version of that. This is a sea dragon, and the one on the bottom, the blue one, is a juvenile that has not yet swallowed the acid, has not yet taken in the brown green algae pond scum into its body to give it energy.

And that's because the urchins eat kelp.

The Sargasso Sea, for example, is not a sea bounded by coastlines, but it is bounded by oceanic currents that contain and envelope this wealth of sargassum that grows and aggregates there.

And within a few months after that sea urchin dying, the seaweed started to grow.

This abalone shell is a biocomposite material that's 98 percent by mass calcium carbonate and two percent by mass protein.

Zoning of algae beds in the Galápogos Islands

There's no coral, algae growing on it, and the water's pea soup.

1. Asian Rare Earth (ARE) was incorporated on 23 November 1979 to produce rare earth compounds and calcium phosphate from monazite.

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Calcium

This is from the coast of Brittany, which is being enveloped in this green, algal slime.

Here's an interesting one for the IT world bio silicon. This is a diatom, which is made of silicates.

But the Sargasso Sea, the same way it aggregates sargassum weed, actually is pulling in the plastic from throughout the region.

So why would a single celled alga need to be able to produce light?

This one disguises itself as floating algae.

After a few years, between five and seven years, fish come back, they eat the urchins, and then the algae grow again.

The first is that we have fossils of algae from 3.5 billion years ago.

And why? Because the lowly abalone is able to lay down the calcium carbonate crystals in layers, making this beautiful, iridescent mother of pearl.

Hydrochloric acid and sulphuric acid are also used in the illicit manufacture of heroin and cocaine.

The Sargasso Sea is also a wondrous place for the aggregation of these unique species that have developed to mimic the sargassum habitat.

Calcium chloride pepcin in capsule form.

for me, it's ocean acidification.

And as it does so, it makes the ocean more acidic.

As soon as they get under those rafts of kelp, the exfoliating cleaner fish come.

Spinning down to someplace a little bit cooler than here right now the Ross Sea in the Southern Ocean.

Rivers washed sediment into the seas, until the organic remains of the algae were buried.

You're to have a calcium injection daily,

This is my baseline This is the Mediterranean coast with no fish, bare rock and lots of sea urchins that like to eat the algae.