EEn 2.8.3 Human Population Growth

What are some ways in which humans exchange energy and matter with the environment?

• By eating, drinking, and breathing

• By using energy for heat and mobility

• By using wood for housing and paper

• All of the above

What is the ecological footprint?

• The amount of land used by individuals, cities, countries, etc.

• The amount of energy consumed by individuals, cities, countries, etc.

• The amount of water used by individuals, cities, countries, etc.

• The amount of waste produced by individuals, cities, countries, etc.

How much land does each person in the USA require for food, forest products, and energy use?

• Less than 1 acre

• 1-5 acres

• 5-10 acres

• More than 10 acres

What is the worldwide average of acres per person?

• Less than 1 acre

• 1-5 acres

• 5-10 acres

• More than 10 acres

What is the main problem caused by over-consumption?

• Resource depletion

• Population explosion

• Inequity

• Climate change

What is the maximum capacity of an individual or population to reproduce under optimal environmental conditions?

• Carrying capacity

• Biotic potential

• Exponential growth

• Logistic growth

What factors can cause limits to the biotic potential?

• Disease, predation, restricted food resources

• Climate, human disturbance, natural disasters

• Density-dependent factors, density-independent factors

• All of the above

What is the current world population to the closest billion?

• 8,000,000,000

• 7,000,000,000

• 9,000,000,000

• 10,000,000,000