3.9 Population Growth and Resource Availability

• What determines population growth in a particular area?

  Balance between births and deaths
• The population growth rate formula is: Birth Rate - Death Rate / Initial Population Size
• Immigration increases population growth in a specific area.
• How does resource scarcity affect population growth?

  Limits population growth
• Match the resource type with its characteristic:

  Renewable Resources ↔️ Replenished over a short period

  Non-renewable Resources ↔️ Exist in finite quantities
• Non-renewable resources include fossil fuels and minerals
• Emigration decreases population growth in a specific area.
• What is the definition of carrying capacity?

  Maximum sustainable population size
• When a population exceeds its carrying capacity, it may lead to resource depletion.
• The population growth rate formula is: Births - Deaths + Immigration - Emigration
• What are the two main types of factors that influence population growth?

  Biotic and abiotic
• Match the resource type with its replenishment rate:

  Renewable Resources ↔️ $R =$$\frac{\text{Amount Replenished}}{\text{Time Period}}$

  Non-renewable Resources ↔️ No significant replenishment
• If consumption exceeds replenishment rates, renewable resources can become scarce.
• What is the definition of carrying capacity?

  Maximum sustainable population size
• Limiting factors reduce population size by affecting birth and death
• List the factors affecting carrying capacity:

  1️⃣ Resource availability

  2️⃣ Habitat quality

  3️⃣ Climate conditions

  4️⃣ Predator-prey dynamics
• How does resource availability affect carrying capacity?

  Increases it
• Better habitat quality increases carrying capacity.
• Climate conditions can increase or decrease carrying capacity based on species needs
• What happens when a population exceeds its carrying capacity?

  Resource depletion and starvation
• Resource management involves planning, monitoring, and controlling resources to achieve sustainability
• Match the resource management strategy with its description:

  Conservation ↔️ Reducing resource consumption

  Sustainable use ↔️ Using resources at replenishment rate

  Recycling ↔️ Reusing materials
• Conservation involves reducing resource consumption.
• What does sustainable use of resources ensure?

  Natural replenishment
• Recycling reduces waste by reusing materials
• Give an example of conservation in resource management.

  Water conservation
• Sustainable forestry is an example of sustainable use.
• Recycling plastics is an example of reusing materials
• What is one impact of high population growth in Sub-Saharan Africa?

  Food shortages
• What are the challenges in resource management due to population growth?

  Resource depletion and environmental degradation