In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.

Q: Question: A _____ in the population cold lead to less food availability. 
 Answer: increase

A: As the population increases, the food supply, or the supply of another necessary resource, may decrease.
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Q: Question: If there are very few wolves the deer population will 
 Answer: increase

A: An increase in predators, the emergence of a new disease, or the loss of habitat are just three possible problems that will decrease a population.
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Q: Question: Will was farming in a rich country when he noticed he his energy consumption was high. Despite this, his consumption of energy is likely much _____ than that of a poor country. 
 Answer: greater

A:
People in the richer nations of the world use far more energy, especially energy from fossil fuels, than people in the poorer nations do.
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