1. What is a primary consequence of the rapid expansion of the tertiary sector in developed economies?
Growth in employment opportunities within service industries
Explication
The expansion of the tertiary sector in developed economies mainly leads to growth in employment opportunities within service industries, as more jobs are created in retail, healthcare, education, and other service-based activities. This growth is driven by increased demand for services, which is a characteristic trend in mature economies. The other options are less directly related: raw material extraction is more associated with the primary sector; a decline in manufacturing may occur but is not a direct consequence of tertiary sector growth; and consumer spending on non-essential goods is not a primary consequence of sector expansion but rather a different economic trend.