System: You are a JSON assistant. You only reply in valid JSON and never in normal text. Request a rating for the complexity of a video based on the provided details. The rating should be a single "result" property containing a floating point number between 0 and 1. Here's a guide for the rating:
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User: Caption: What is permafrost soil?
Permafrost, has to be extremely cold.
The soil temperature must be below zero degrees Celsius for at least two consecutive years.
About a quarter of the non-glacial land is permafrost soil.
There are regions in the Arctic where 70 percent of the subsoil is permanently frozen.
During the Ice Age the earth there was not protected by an ice sheet,
so the cold could penetrate deep into the earth.
The permafrost soil extends into the earth's interior up to 1.6 kilometers.
Is the ground constantly freezing?
The top layer melts every summer.
This activates the biological and biochemical activities.
Scientists regularly measure the temperature of this active soil layer
and of the frozen layer below to determine the boundary
- the melting depth - between the two layers.
Does the permafrost soil melt?
Enormous amounts of dead plant remains are stored in the permafrost soil.
As the climate continues to warm, bacteria begin to destroy the organic matter.
As a result, the carbon that has been stored in it
is released into the atmosphere as greenhouse gases.
This leads to further warming of the climate.
However, predicting the development of permafrost soil is extremely complex.
Many surface features change at the same time,
such as the snow cover and vegetation.
This creates various and often opposite effects.
In the end, however, we must fear
that permafrost soil will soon no longer be permanent.
Title: Ĉiamfrosta grundo
Description: Ĉi tiu video estas traduko el la germana telvidkanalo ZDF: https://www.zdf.de/dokumentation/terra-x/permafrostboden-creative-commons-clip-100.html
Licenco: CC BY 4.0: https://creativecommons.org/licenses/by/4.0/deed.eo


3sat/nano/Raketenfilm/Andreas Gust/Konstantin Fuchs/
Ŝanĝoj: Aldono de kanalaj komenco kaj fino kun muziko, Esperanta voĉo, piktogramo de Scivolemo en la angulo kaj traduko de la tekstoj en la video.
Muziko: Stars align de The 126ers
Esperanta teamo: Matheus, Siru, Stefan, Karlos’ kaj Frank

Rilataj ligiloj:
https://eo.wikipedia.org/wiki/Grado_de_Celsio


https://eo.wikipedia.org/wiki/%C4%88iamfrosta_grundo
https://eo.wikipedia.org/wiki/Arkto
https://eo.wikipedia.org/wiki/Forceja_gaso

Ne forgesu aŭskulti nian podkaston en https://anchor.fm/scivolemovideoj kaj viziti la blogon https://scivolemo.wordpress.com/ por plie lerni!
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