azolla वाक्य

Tuan s 30 experiments involved observing Vietnam from space, life sciences ( including tests of growth of Vietnamese azolla water ferns, with application to future closed-loop life support systems ), and materials processing.
*Strange that you should ask that question, as this has already happened in the past, see azolla event causing a global cooling catastrophe . talk ) 08 : 43, 19 May 2010 ( UTC)
Arnold notes that with the placement of " A . primaeva " into the genus " Azolla " means that its description in 1890 was actually the earliest species described from the fossil record.
Studies of fish from warmwater streams shows a preponderance of algae in the stomach ( 60-80 % ), and they are also known to feed on the roots of " Azolla " ( floating water ferns ).
On the other hand, since the Azolla event and the break-up of Antarctica and Australia started cooling the planet, the climate has steadily deteriorated and with it, biodiversity has steadily become smaller, especially since the Miocene.

The weevil " Stenopelmus rufinasus " is used as an agent of biological pest control to manage " Azolla filiculoides ", and it has been found to attack " A . pinnata " as well.
Through experimentation, he discovered, too, that the addition of certain fish ( loaches ) and a nitrogen-fixing weed ( azolla or duckweed ) to the fields boosted rice and duck growth, and simultaneously supplied nutrition for the ducks.
Floating plants can absorb and filter heavy metals . " Eichhornia crassipes " ( water hyacinth ), " Lemna " ( duckweed ) and " Azolla " ( water fern ) store iron and copper commonly found in wastewater.
The plants are typically red, and have very small water repellent leaves . " Azolla " floats on the surface of water by means of numerous, small, closely overlapping scale-like leaves, with their roots hanging in the water.
"It's spectacular, " he said . " Right at this transition from supergreenhouse to cooling, that's where there's this evidence of a bathtub situation there that is so fresh that this Azolla can really bloom and boom ."