Answer:
(a) (1) Relocation diffusion
(2) Expansion diffusion
(b) By transferring ideas, factors, and information from place to place
(c) Upgraded medical care in Tristan da Cunha
Explanation:
Diffusion or spatial diffusion in geography is the movement or proliferation of ideas, technology, cultures, people, objects, weather, diseases or other components from a place of origin to other places
The types of diffusion defined above are;
(1) Relocation diffusion
(2) Expansion diffusion
(3) Stimulus diffusion
(1) Relocation diffusion is the change of an objects position from one place to another, such as human migration
(2) Expansion diffusion
There are two types of expansion diffusion
(i) Contagious expansion diffusion involves the transmission of the factor being diffused from one person (the vector) to another person (the host)
Examples of contagious expansion includes
- The spread of diseases from a place of origin to different places
- Viral videos, news in social media
(ii) Hierarchical diffusion involves the spread of information from the topmost levels of an organisation down to the a wider group of hosts
(b) Globalization, is the proliferation or spread of a technology, an idea or other factors from their place of origin to other places such that the components of a single product such as a cassette recorder which consists of plastics from China, copper from Zambia, semiconductors from the United States etc. can be from different parts of the world which is a form of spatial diffusion
(c) In Tristan da Cunha, globalization, through the availability of the internet, has made it possible for a doctor to access tele-medical help and to share ideas and consult with doctors in other hospitals with more medical advanced technologies in order to treat more complicated ailments.
