Global patterns & distribution (intro)

• This how density is defined: fill in blank

  A) per unit area

  
• Distribution is how the population is what:

  A) spread

  
• Approximately 55% of the world now lives in cities but this figure is projected to reach 65% by 2050 as urbanisation increases
• Many countries which went through the industrial revolutions in the 18th and 19th centuries are now experiencing population their growth decline
• Lics which are still developing/ industrialising have the highest population growths
• Global pattern of population growth rate (2021). What is one reason countries in Africa have higher population growth then the rest of the world?

  These countries are still developing / industrialising

  
• Global average growth rate has declined since around 1970 
• What are the two main factors which affect population growth?

  1. development processers
  2. environmental factors
• What are the 3 different types of revolutions which have developed our food supply?

  1. The Neolithic Revolution. 12,000 years ago
  2. The Green Revolution. 1950s - 60s
  3. The Industrial Revolution. 1700s
• Which revolution is being described in the text?

  The green revolution

  A) Green Revolution

  B)

  C)

  D)

  
• What type of revolution is the text talking about?

  A) Neolithic

  
• The industrial revolution improved agriculture, the manufacturing of goods and their transportation
• Due to the fact the industrial revolution allowed for more food to be transported and produced the world population growth rates to increased. At the start of the Industrial Revolution, the population grew by 57%, and 100 years on the population grew by 100%.
• Exponential growth = increasingly more rapid growth at a constant rate
• The world’s population stayed below 1 billion until the 1800s , yet o reach 2 billion it only took just over 100 years - this is an example of exponential growth
• Food production has tripled globally in the past 50 years, and global arable land has increased by 67 million hectares
• What is the definition of Carrying Capacity?

  Maximum population size an environment can support for a sustained period of time without environmental degradation and at a high standard of living
• Countries with the highest population growth are : Syria, South Sudan and Niger
• Countries with the lowest population growth are north Korea, Austria, and Guyana
• The countries with the highest population densities (2024) are Singapore, China and Monaco

  
• State 3 reasons why global food production has increased:

  1. Technology - e.g. combine harvesters
  2. Agricultural practices - using herbicides and pesticides, to maximise yields.
  3. Increased land use - Better farming management to create more farmable land