It is very interesting how photosynthesis and cellular respiration<span> help each other.</span>
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A scientist might also want to know if there is water, a sustainable atmosphere, or the temperature on the planet. If any of these features are different, then life may not be sustainable.
There is no possible explanation as this is practically definition.
Answer:
The temperatures are so cold that there is a layer of permanently frozen ground below the surface, called permafrost. This permafrost is a defining characteristic of the tundra biome. Mosses, sedges, and lichens are common, while few trees grow in the tundra.
Explanation: