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APPEND ONLY</h2>
Unlike traditional databases, blockchain is designed to be an "append-only" data structure. That means you can only append new data in the form of additional blocks, which will then be chained together with previous blocks of data. All data is permanently stored across more nodes and cannot be altered.
Answer:
Glacier
Explanation:
Ferris is 6ºC (43ºF) in the winter. What is the source for most of the energy that causes this temperature?
Glacier at this period the temperature is extremely cold with much less CO2 in the atmosphere that can cause green house gas that is warming of the earth.