Ppl, Patterns, and Processes PPT

Question 1

Extent of Human Activity on Earth

Answer 1

Nearly 95% of the Earth’s surface shows some form of human modification, with 85% bearing evidence of multiple forms of human impact.

Question 2

What are the percentages for different levels of human modification

Answer 2

5% is unaffected
44% low modification
34% moderate modification
13% high modification
4% very high modification

Question 3

What are commonly found in highly modified biomes

Answer 3

Highly modified biomes are dominated by dense human settlements, agricultural land uses, networks of infrastructure, and industrial activities.

Question 4

Green revolution

Answer 4

Period (1940s–1960s) when farming changed massively due to new technologies (high-yield crops, chemical fertilisers, pesticides, modern machinery, etc). While it helped produce a lot more food, it also caused problems like soil damage, water pollution, and loss of biodiversity (too much fertiliser and pesticide use) Some small farmers couldn’t afford the new tech, so it widened the gap between rich and poor farmers.

Question 5

Collar Colours and what typa jobs they represent (White, Blue, Pink, Green, Grey)

Answer 5

White collar => Office/professional jobs (Managers, lawyers, accountants).
Blue collar => Manual labour/skilled trades (factory workers, electricians).
Pink collar => Service/care jobs, traditionally held by women (nurses, teachers, retail).
Green collar => Jobs focused on the environment + sustainability (environmental engineers).
Grey collar => Mix of physical and mental work, or older workers who still work after retirement.

Question 6

What is the ‘new’ global economy characterised by?

Answer 6

A system of production, marketing, and finance that uses international trade and communication to move goods, money, information, and people between countries.

Question 7

Demography

Answer 7

The study of statistics such as births, deaths, income, or the incidence of disease, which illustrate the changing structure of human populations.

Question 8

Exponential Human Pop Growth

Answer 8

Exponential growth occurs when a factor (pop. here) grows by a constant proportion (e.g doubling) during each unit of time.

During the 20th century the world’s population grew by an exponential rate of up to 2% per annum in the 1960s.