Exercises on sectors of the economy (with feedback)

a) The primary sector involves the extraction of natural resources, such as agriculture and mining.

b) The secondary sector covers industrial and manufacturing production.

c) The tertiary sector includes service activities such as commerce and education.

d) The tertiary sector is the most significant sector in developed countries and some emerging countries.

e) The primary sector is the most significant sector in highly industrialized economies.

Answer key explained

Answer: e) The primary sector is the most significant sector in highly industrialized economies.

Explanation: In highly industrialized economies, such as those in developed countries, the sector primary generally represents a smaller share of the economy compared to the secondary and tertiary. Therefore, the statement that the primary sector is the most significant in highly industrialized economies is incorrect.

Answer key explained

Answer: d) Oil refining.

Explanation: The primary sector of the economy involves activities related to obtaining natural resources. Oil refining, in turn, is part of the secondary sector of the economy, which encompasses production industrial and the processing of raw materials, such as the transformation of crude oil into products derivatives,

Which of the following factors are often associated with problems in the secondary sector of the economy in developing countries?

Answer key explained

Answer: b) Shortage of qualified labor.

Explanation: Problems in the secondary sector of the economy in developing countries often include a lack of skilled labor. This is because these countries often face deficiencies in the education and technical training of their workforce, which limits the ability to adopt advanced technologies and production processes efficient. At the same time, the secondary sector tends to be labor intensive, which means that a lack of skilled workers can hamper the industry's growth and competitiveness.

Which of the following factors are often associated with problems in the tertiary sector of the economy in a globalized context?

Answer key explained

Answer: c) Fierce competition.

Explanation: In a globalized context, the tertiary sector of the economy, which encompasses services such as finance, health, education and tourism often faces problems associated with competition fierce. Globalization facilitates the entry of foreign companies into local markets, increasing competition between service providers. This can lead to pressure on prices, the search for constant innovation and the need for high quality customer service to stand out in a competitive market.

In emerging countries, such as Brazil, India and China, we have observed significant changes in economic sectors. Which of the following statements accurately describes a common trend in these countries?

Answer key explained

Answer: e) Investment in technology and innovation drives growth in various sectors.

Explanation: In emerging countries, such as Brazil, India and China, a common trend is investment in technology and innovation, which drives economic growth in various sectors. Although the primary sector still has relevance in some areas, these countries are seeking to diversify their economies and reduce this dependence. The secondary sector has also seen significant investment, especially in manufacturing and the production of consumer goods. The tertiary sector is dynamic, with an increase in the use of technology in financial services, education, healthcare and e-commerce.

Answer: Automation has significant impacts on all sectors of the economy. In the primary sector, such as agriculture, it improves efficiency and can reduce the need for labor. In the secondary sector, such as industry, it increases production and reduces costs, but may require retraining of workers, or cause mass layoffs. In the tertiary sector, such as services, automation is improving customer service, but it can also challenge employment in some areas.

Answer: the primary sector in Brazil is quite diversified, with emphasis on agriculture, livestock and mining. The country is a powerhouse in these sectors, mainly in the export of soybeans, oranges, sugarcane, coffee and corn. In livestock farming, beef stands out and, in mining, the extraction of iron, copper, tin, nickel, manganese and niobium.

However, even though it is a profitable and important activity for the Brazilian economy, these activities cause severe environmental impacts, mainly deforestation and pollution of rivers, in addition, native peoples also suffer from the loss of land and the concentration of land in the country.

Answer: Industry 4.0, also known as the Fourth Industrial Revolution, has a significant impact on the global economy. It is transforming production processes by incorporating technologies such as advanced automation, artificial intelligence, Internet of Things (IoT) and data analysis into all phases of production.

This results in greater efficiency, reduced costs and more personalized products. Furthermore, Industry 4.0 is driving innovation, creating new markets and specialized jobs, but also raises challenges, such as the need to retrain the workforce and security issues cybernetics. Its impact is global and affects various economic sectors.

Answer: E-commerce, or online commerce, has had a profound impact on the global economy. It has provided greater convenience to consumers, allowing them to shop anytime, anywhere. This has resulted in an increase in sales for many companies and opened up opportunities for digital entrepreneurs.

However, it also generated challenges, such as intense competition and the need to invest in cybersecurity. Additionally, e-commerce is reconfiguring supply chains, disrupting the real estate market and creating new jobs related to logistics and technology.

In the primary sector, the decline in young labor affects agricultural production, as agriculture often requires hard physical work. This could lead to an increasing need for automation in agriculture and increase production costs.

In the secondary sector, there is a potential shortage of skilled workers, especially in industries that require technical skills. This can lead to the need for additional training and the search for automation solutions to compensate for labor shortages.

In the tertiary sector, the aging of the population may create a growing demand for health and long-term care services, generating economic opportunities in this field. However, it also puts pressure on social security systems as there are fewer active workers contributing to these systems.

MARQUES, Vinícius. Exercises on sectors of the economy (with feedback).All Matter, [n.d.]. Available in: https://www.todamateria.com.br/exercicios-sobre-setores-da-economia/. Access at:

Simple Interest Exercises

Simple Interest Exercises

You simple interest they are corrections made to an applied or due amount. Interest is calculated...

read more
Compound Interest Exercises

Compound Interest Exercises

Compound interest represents the correction applied to an amount that was borrowed or applied. Th...

read more
Common Concentration: exercises with commented feedback

Common Concentration: exercises with commented feedback

Common concentration is the amount of solute, in grams, in 1 liter of solution.Mathematically, th...

read more