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What is permafrost ?...

What is permafrost ?

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**Step-by-Step Solution:** 1. **Definition of Permafrost**: Permafrost is defined as any ground that remains completely frozen for an extended period of time. 2. **Temperature Characteristics**: The temperature of permafrost is consistently at or below 0 degrees Celsius (32 degrees Fahrenheit). This indicates that the ground is always cold and icy. 3. **Duration of Freezing**: For an area to be classified as permafrost, it must remain frozen for at least two consecutive years. ...
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Which biome is characterized by permafrost ?

Assertion: On planet Earth, life exist not just in a few favourable habitats but even in extreme and harsh habitats such as according Rajasthan deserty, perpetually rain-soaked Meghalaya forest, deep ocean trenches, torrential streams, permafrost polar regions, high mountian tops, streams, permafrost polar regions, high mountains tops, boiling thermal springs, and stinking compost pits, etc. Reason: Even our intestine is a unique habitat for hundereds of species of microbes.