Tundra ecosystem is cold and sunlight is short. Plants need sunglight and warmth in order to grow, thus plants in tundra are shorter and cloers to the ground since the ground is warmer than the air
The layer of bedrock is called LITHOSPHERE.
Lithosphere is the rigid outer part of the earth which is made up of crust and upper mantles.The geologic processes that usually occur on the earth surface such as earthquakes are originated from the lithosphere. The lithosphere is bounded by the atmosphere above and the asthenosphere below.
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A common misconception is that scientific theories are rudimentary ideas that will eventually graduate into scientific laws when enough data and evidence have been accumulated. A theory does not change into a scientific law with the accumulation of new or better evidence.
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