AGRICULTURE

AGRICULTURE 

   Growing food plants and looking after animals that will be eaten is called agriculture. Today, the global population of around seven billion people largely relies on a few cereal crops to provid its essential foods. These crops include maize, wheat, rice,potatoes. Protein from livestock such as fish, cattle, pigs, and poultry makes up less then 20 per cent of total global food. Forestry-Forestry provide habitats and food for most of Earth’s land-based wildlife, and help control global warming by removing carbon dioxide from the atmosphere. However, forests are also in danger- they are being cut down to supply fuel and timber for building. Well managed forest- Forests can be managed in a way that lest people harvest their produce, such as timber, without destroying them.

Farming 




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    Farming began 10,000 years ago, in the Middle East. The first farmers grew cereai crops, like wheat,and reared animals for their meat and milk. Modern agriculture has moved on a lot since then. New machine-based techniques let farmers produce much bigger yields from their land. Other innovations include irrigation, pesticides, new plants new animal breeds, and global transport-farmers can now send their produce all over the world.Feeding the world- Food is produced all the world,both for local consumption and for export. This map shows the top producers of each crop or type of livestock.

Fishing 

      Fish are one of the most nutritious supplies of protein and have been eaten for thousands of years.Modern fishing techniques allow large quantities of wild fish to be harvested from the world’s seas and oceans. Although international limits have been introduced,many popular fish species are now endangered. One solution to overfishing is to rear fish for human consumption in fish farms.Line Fishing-Using baited hooks attached to long lines is quite acheap way of fishing.However,animals such as turtles and seabirds can be accidentally killed by this method. Net fishing-Net fishing is an ancient method, but its modern form is on an industrial scale, using large synthetic nets that can catch huge volumes of fish at one ago. Trawling – Trawling is a form of net fishing where the net is dragged through the water or along the seabed. It can cause damage to the seabed and catches fish of all size and types.