The Primary Sector

4. Holdings also vary in shape: regular or irregular
6. Agriculture depends on many factors, including both physical and ___________ elements
7. Closed fields, also known as _______________, are plots of land separated by fences, walls or hedges, etc.
12. In traditional societies, farmers use very ______________ tools, while developed ones use advanced technology, such as machinery, selection of seeds, etc.
13. managing forests in order to obtain natural products (such as wood), rubber, and resins.
14. the breeding of animals to obtain products for human use, such as food and raw materials for industry (milk, meat, eggs, etc.).
15. the cultivation of land to obtain different kind of plants in order to provide food for people and animals.
16. The main goal of commercial agriculture is to obtain maximum _____________.
18. Holdings vary in size: small, medium, or large
19. countries that have a larger part of the population employed in the primary sector
20. A ______________ consists of one or more plots of land

1. Fertilizers contaminate the soil and the water in aquifers.This contamination can affect our food and health.
2. landscapes that have open plots of land with no boundaries between them.
3. Tasks are completed in less time and at a reduced cost, machines are used.
5. Deforestation can involve _______________ of forest land to farms, ranches, or urban use
8. the extraction of minerals and other geological materials from the Earth. It can also be considered part of the secondary sector, because it provides essential raw materials for industry and construction.
9. Usually, only one product is grown on the farm
10. also known as forest clearance is the removal of a forest or stand of trees from land that is then converted to non-forest use
11. the practice of catching fish and other marine species for food or as raw materials for industry.
17. The increasing use of machinery has led to a decline in the number of jobs in rural areas. Many younger people have left to live in cities.