Wind farms are the only sustainable process listed in your question. They are a renewable resource, the source replenishes what is taken from it over time, whereas all of the others are non-renewable resources or purely destructive practices.
Conduction from your hand to the glass
Answer:
This method is used for separating bran from flour, sand from gravel, pearls of different sizes, etc. Winnowing:The process of separation of lighter particles from heavier particles; with the help of wind; is called winnowing. This method is also used for separating grains from husk.
Answer:
splitting water into hydrogen and oxygen
Explanation:
because
