AP Biology MCQ Ecology Which of the following was the most significant limiting factor in human population growth in the 20th century?

Which of the following was the most significant limiting factor in human population growth in the 20th century?

Naim 21:01 Ecology

Which of the following was the most significant limiting factor in human population growth in the 20th century?

A) clean water
B)non-HIV disease
C)HIV
D)genocide
E)famine

Answer: A

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Ecology

Which of the following areas of study focuses on the exchange of energy, organisms, and materials between ecosystems?