18 Questions
What is the meaning of 'I' in the IPATS model developed by John Holdren, Barry Commoner, and Paul Ehrlich?
Impact on the environment
Which factor does 'A' represent in the IPATS model used by policymakers to assess environmental impact?
Affluence
According to the IPATS model, what does 'S' represent in the equation I=P×A×T×S?
Sensitivity
What does the 'P' stand for in the IPATS model when assessing human impact on the environment?
Population size
Which element does the variable 'T' represent in the IPATS model equation developed in 1974?
Technology
What is one of the predictions made by the IPATS model based on current population growth projections?
Crash in resources and industrial output
What effect does the IPATS model predict on food, output, and pollution levels if the population is capped at 8 billion?
No change in food, output, and pollution levels
According to Fig 6.5b, what role has technology played in human carrying capacity?
Increased human carrying capacity
Can technology be relied upon for further increasing human carrying capacity, while minimizing impact on the environment?
No, technology advancements cannot increase carrying capacity sustainably
How do age pyramids help in predicting population growth?
By displaying the age distribution of a population
According to Fig 6.12, how does population growth vary with increasing wealth?
Population growth decreases with increasing wealth
In reference to Fig 6.16 and 6.19, what is observed in relation to the environmental impact of adding 1 rich person compared to adding 50 poor people?
Adding 1 rich person has a larger environmental impact
What are the 4 main factors that determine population growth rate?
Births, deaths, immigration, emigration
What determines a population's carrying capacity?
Competition for resources, water, food, space, predators
What typically happens when a population exceeds its carrying capacity?
Competition for resources intensifies
Which growth pattern do natural populations follow in practice?
Logistic growth pattern
What causes natural populations to follow a logistic growth pattern?
Carrying capacity
In population biology, what does the term 'logistic growth' specifically refer to?
Population growth that follows a sigmoid curve
Test your knowledge on the IPATS model predictions and the concept of human carrying capacity. Explore the impact of technology on carrying capacity and its relationship with environmental sustainability.
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