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The diatoms are one of the largest and ecologically most significant groups of organisms on Earth. They are also one of the easiest to recognize, because of their unique cell structure, silicified cell wall and life cycle. They occur almost everywhere that is adequately lit (because most species need light for photosynthesis) and wet - in oceans, lakes and rivers; marshes, fens and bogs; damp moss and rock faces; even on the feathers of some diving birds. Some have been captured by other organisms and live as endosymbionts, e.g. in dinoflagellates and foraminifera. Because of their abundance in marine plankton, especially in nutrient-rich areas of the world's oceans, diatoms probably account for as much as 20% of global photosynthetic fixation of carbon (~ 20 Pg carbon fixed per year: Mann 1999), which is more than all the world's tropical rainforests.
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What are large deposits of diatom remains called?
The cell wall of diatoms are very thick and remain long after the diatoms die. when the cell wall remains of many dead diatoms clump together, they form a crumbly, abrasive substance called diatomaceous earth or diatomite.============================================The rock type called Chalk is also made of diatom skeletons.
Are gasses matter?
Yes, gases are a form of matter. They are made up of particles (atoms or molecules) that have mass and occupy space. Gases have the ability to fill the container they are in and can be compressed or expanded.
What is the composition of gases that make up the earths atmosphere?
The Earth's atmosphere is made up almost entirely of two gasses, oxygen & nitrogen. It's 21% oxygen and 78% nitrogen. So, these two make up 99%. The remaining 1% is a collection of other gasses.
How do plants produce reduced carbon compounds?
Plants use a thing called photosynthesis. this is where they take carbon dioxide from the air with sunlight and minerals from water and such through their roots. then they photosynthesis and create oxygen as well as glucose wich they store as back up food.
Can you safely heat up rubbing alcohol?
No, heating up rubbing alcohol can be dangerous as it is flammable and can produce harmful vapors.
Gasses will to take up as much room as they can?
yes.
Does gases take up a lot of space?
Gasses spread out to take up as much space as they can but it really depends on the amount of gas.
How long are diatoms?
Diatoms are usually between 2 and 200 microns in diameter, though there has been some up to 2 millimeters in size
Why do gasses take up so much space?
because they need room for the particles to move around
What organism has silica walls?
Diatoms are known for having silica walls, which make up their protective outer shell. These microscopic algae play a significant role in marine and freshwater ecosystems.
Which type of sediment is made up mainly of the shells of diatoms?
Siliceous
What substance makes up the greatest percentage of the shells of diatoms?
Silica -IAmReallyRone
Which type of sediments is made up mainly of shells of diatoms and radiolarians?
Siliceous
What are the gasses that make up the greenhouse gasses?
Carbon MonoxideCarbon DioxideNitrogen OxidesSulfur dioxides
It is sometimes said that diatoms live in what kind of house?
All diatoms are enclosed by a frustule that is made up of two valves fitted together by a connective zone called a girdle.
Why do volcanoes explode after years of silence?
in the magma chamber gasses build up. while it is silent its building up theses ezplosive gasses build up and explode.
What does a catalyst converter do?
speeds up a reaction or changes harmful gasses in car exhausts into harmless gasses
