Primary activities - are made of activities related to obtein natural resources from nature. It means agriculture, livestock, fishing and forestry., Climate - crops need warm temperatures, water and humidity to grow. In extreme climates crops are unable to grow ( extreme cold, excessive heat and dry conditions)., Relief - agriculture is usually located in flat areas or valleys. Sometimes mountain slopes are cultivated  on terraces. Altitude and Gradient condition the development of agriculture.agriculture is usually located in flat areas or valleys. Sometimes mountain slopes are cultivated  on terraces. Altitude and Gradient condition the development of agriculture., Ground - is very important, because it has to be rich in nutrients, have a good structure and be able to keep the humidity., Population - size and rate of growth affect production. More population will need more food. Places with many old people will need young workers. ​in developed countries less and less people want to work in this sector. In underdeveloped countries the low wages promote the offshoring, MCFS - several kind of crops are cultivated. Usually are small size, for self-consumtion, SCFS - the plot is used in a single and specialized crop. This simplifies techniques and machinery, so is used in a  productivist/merkat agriculture, Fishing - It is based on the exploitation of the animal resources offered by the sea. There are 2 types of fishing: traditional and industrial., Water Pollution - actions need to take place in order to stop water pollution and carry out a more sustainable fishing system., Market Livestock - Its goal is to sell the production in the market and to obtain as much profit as possible.,

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