The answer for your following question would be : A the government
The government determine what , how and at what prices for a product because cuba established a communist economic system, in which all economic activities in that country are controlled by government
The main factors were trade and commerce,exploitation or resources such as minerals, settling of surplus populations and criminals and heretics, as well as spread of Christianity. The Spaniards were the most inspired by the desire to spread Christianity. Britain was more motivated by resources, and trade, while Portugal was mainly attracted by the mineral resources in the area.
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Organic farming is a farming method of livestock and crop production that do not involve the use of synthetic fertilizers and pesticides, GMOs and other chemical substances. They rather opt to use fertilizers that comes from biomass like manure, compost and bone meal.