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Human Geography of Tamil Nadu - Distinguish between the following | 10th Social Science : Geography : Chapter 8 : Human Geography of Tamil Nadu

Chapter: 10th Social Science : Geography : Chapter 8 : Human Geography of Tamil Nadu

Distinguish between the following

Social Science : Geography : Human Geography of Tamil Nadu : Book Back Important Questions, Answers, Solutions : Distinguish between the following

VI. Distinguish between the following

 

1. Marine Fishing and inland fishing


Marine fishing

1. Fishing is carried out in oceans and sea. Continental shelves support marine fishing.

2. Large mechanised boats are used for fishing.

3. The fish varieties caught are sharks, flying fish, counch, catfish, silver bellies and crabs.

4. Marine fishing is practised in the coastal districts like Chennai, Kanyakumari, Tirunelveli, Nagapattinam, Thanjavur and Ramanathapuram.

Inland fishing

1. Fishing is carried out in lakes, rivers, ponds, estuaries, backwaters, reservoirs and swamps.

2. Catamarans, diesel boats and floating nets are used for fishing.

3. The fish varieties are catla, rogue, mirkal, eel and calabaashu.

4. Inland fishing is practised almost in all the districts. Vellore district leads in the inland fish production. Cuddalore, Sivagangai and Virudhunagar are other important centres.


2. Food crops and non- food crops


Food crops

1. Crops which are cultivated for human consumption are called food crops.

2. Food crops include rice, pulses, cereals and millets.

Non-food crops

1. Crops which are cultivated for commercial purposes are called non-food crops. They are also used in Industries.

2. Fibre crops like cotton, sugarcane and jute are examples of non-food crops.


3. Surface water and ground water


Surface water

1. Surface water includes river basin, reservoirs and tanks.

2. The total surface water potential of the state is about 24,864 mcm.

3. More than 95% of the surface water had already been put into use.

Ground water

1. Groundwater includes tube wells and open wells.

2. The ground water resource of the state is 22,424 mcm.

3. More than 80% of the ground water has been already put into use.


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