Consider the following statements:1. Nomadism is a high degree of spatial mobility as a basis for a particular ways life.2. Nomadism is confined to the semi-arid regions of the world.3. Nomadism is presumed to be a synonymous with movements of herds and livestock rearing.4. Hunter gatherers who typically have no domesticated livestock are also defined as nomads. Which of these are correct?

Agriculture encompasses crop and livestock production, aquaculture, fisheries and forestry for food and non-food products. Today, small farms produce about a third of the world's food, but large farms are prevalent. The largest one percent of farms in the world are greater than 50 hectares and operate more than 70 percent of the world's farmland. Nearly 40 percent of agricultural land is found on farms larger than 1,000 hectares. However, five of every six farms in the world consist of less than two hectares and take up only around 12 percent of all agricultural land. The major agricultural... Show more

Agriculture encompasses crop and livestock production, aquaculture, fisheries and forestry for food and non-food products.

Today, small farms produce about a third of the world's food, but large farms are prevalent. The largest one percent of farms in the world are greater than 50 hectares and operate more than 70 percent of the world's farmland. Nearly 40 percent of agricultural land is found on farms larger than 1,000 hectares. However, five of every six farms in the world consist of less than two hectares and take up only around 12 percent of all agricultural land.

The major agricultural products can be broadly grouped into foods, fibers, fuels, and raw materials (such as rubber). Food classes include cereals (grains), vegetables, fruits, cooking oils, meat, milk, eggs, and fungi.

Global agricultural production amounts to approximately 11 billion tonnes of food, 32 million tonnes of natural fibres and 4 billion m3 of wood. However, around 14 percent of the world's food is lost from production before reaching the retail level.

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