Population#1: Humans
Population#2: Stink beetles
Answer:
Worker-foraging bees collect nectar by sucking droplets with their proboscis (a straw like tongue). The nectar on its own provides immediate energy in the form of carbohydrate sugars. Excess nectar is stored in the bee's stomach until it gets back to the hive
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.
