How questions
How many people lived on Earth in 2011?
7 billion people.
What is the UN's worst-case population scenario for 2100?
The world population could reach 16 billion.
What percentage of the world's water is fresh?
2.5%
How does deforestation affect the land?
It leads to soil erosion and a decrease in soil fertility.
What happens if people don’t have access to clean drinking water?
There is a higher risk of diseases like cholera and malaria, which put a strain on healthcare systems.
Which continent has the highest population?
Asia
How does overpopulation affect healthcare systems?
More people mean higher demand for medical services, which can overwhelm healthcare facilities.
What are some reasons for the world’s growing water scarcity?
Droughts, poor infrastructure, and the overuse of water for agriculture and industry.
Which country has the highest population density?
Monaco (smallest country with a high number of people per square kilometer).
How do economic factors influence access to clean water and food?
Poorer communities may lack infrastructure for clean water and struggle to afford sufficient food.
What steps are governments taking to reduce reliance on oil?
Some governments, like those in the U.S. and Germany, are investing in renewable energy sources.
What does “life expectancy” mean?
The average number of years a person is expected to live.
How does gender inequality relate to overpopulation and education?
In many developing countries, women have less access to education, leading to larger families and higher birth rates.
What are the possible long-term consequences of land degradation on global agriculture?
Decreased crop yields, food shortages, rising prices, and increased hunger.
What percentage of the world's population is under 25 years old?
About 42%.