The employment structure of a country depicts the majority demographics of the labor force in the country and the major labor sector of the country (primary, secondary or tertiary). The developing countries’ economy will have the majority of its labor force mainly in the primary labor sector (raw mineral extraction) while most developed country's labour force is mainly in the tertiary (service industry) sector.
The primary labor sector involves the use of more human labor and less use of machinery. This, therefore, raises the costs of production (and the costs of the goods) and little value-addition to the products. The profit margins are low. In tertiary labor sector, automation reduces costs of production and profit margins can be high without raising the costs of goods exorbitantly.
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Human use this wind flow, or motion energy, for the purposes: sailing, flying a kite, and even generating electricity. The terms “wind energy” and “wind power” both describe the process by which the wind is used to generate mechanical power or electricity.
Eliminating child labor is problematic (in third world countries) because of outsourcing. We have our products made in foreign countries with no child labor laws because it's cheaper. We eliminate child labor, the price of production goes up and bushiness have to charge more to cover the costs, hiking the prices to consumers in our economy. Therefore, big companies don't really want child labor to be eliminated. A lot more could be done about it, but many people choose not to help for their own personal gain.