Economic activity and energy
IGCSE
Isi roda ini (7 pilihan)
- Define the term primary sector and give an example
- Define the term secondary sector and give an example
- Define the term tertiary sector and give an example
- Define the term quaternary sector and give an example
- Describe how the importance of primary industry changes over time and give one reason why
- Explain why the quaternary sector only appears in the post-industrial phase of the Clark-Fisher model
- Expain why the importance of the secondary sector rises and then falls in the industrial phase of the Clark-Fisher model