Q1
What determines population growth rate?
ABirth rate, death rate and migration
BOnly birth rate
COnly death rate
DOnly migration
ICSEClass 9 (ICSE)BiologyCh 15 · Topic 2
Practice and Revision - Population - Human Population Growth
Let us practise and revise what we learned about population - human population growth. Human population growth is influenced by birth rates,
Core concept
Population growth rate is determined by the difference between birth rate and death rate, plus net migration into or out of an area.
How it works
Rapid population growth can strain resources like food, water, and housing, while also potentially providing a larger workforce for economic growth.
Why it matters
Factors affecting population growth include healthcare access, education levels (especially for women), and economic development.
Key detail
Understanding population growth trends helps governments and organisations plan for resource allocation, infrastructure, and sustainable development.
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Quick notes
• Population growth = birth rate - death rate + migration.
• Rapid growth can strain resources.
• It can also provide a larger workforce.
• Healthcare access affects population growth.
• Education, especially for women, affects growth.
• Economic development also affects growth.
• Understanding trends helps resource planning.
• This supports sustainable development planning.