Oceans and Resources We have seen earlier that we obtain salt, fish, shells and other products from the ocean. Besides these, we get minerals like iron, lead, cobalt, sodium, manganese, chromium, zinc, etc. from the ocean floor. We also get mineral oil and natural gas. (3) Figure 6.7: 1. Lead 2. Cobalt 3. Manganese 4. Iron Ore Ans: In future, it will be possible to generate electricity with the help of oceanic waves and tides. It is possible to convert the saline ocean water into potable drinking water. This will reduce the scarcity of drinking water to some extent. The drinking water in the city of Dubai in United Arab Emirates is being made available through this method. Figure 6.6: Mangrove Forest In the swampy areas of sea coast, and in the areas of estuaries, the soils are saline and the climate, humid. In such areas, mangrove forests with tivari and sundary grow well. The wood of mangrove trees is light and oily. It lasts longer. It is used as fuel and also for ship-building. The mangrove forests protect coastal areas from huge waves. These forests also protect the biodiversity in the coastal areas. If these forests are located near coastal towns, they are called the lungs of these towns. Oceans and Resources We have seen earlier that we obtain salt , fish , shells and other products from the ocean . Besides these , we get minerals like iron , lead , cobalt , sodium , manganese , chromium , zinc , etc. from the ocean floor . We also get mineral oil and natural gas . ( 3 ) Figure 6.7 : 1. Lead 2. Cobalt 3. Manganese 4. Iron Ore Ans : In future , it will be possible to generate electricity with the help of oceanic waves and tides . It is possible to convert the saline ocean water into potable drinking water . This will reduce the scarcity of drinking water to some extent . The drinking water in the city of Dubai in United Arab Emirates is being made available through this method . Figure 6.6 : Mangrove Forest In the swampy areas of sea coast , and in the areas of estuaries , the soils are saline and the climate , humid . In such areas , mangrove forests with tivari and sundary grow well . The wood of mangrove trees is light and oily . It lasts longer . It is used as fuel and also for ship - building . The mangrove forests protect coastal areas from huge waves . These forests also protect the biodiversity in the coastal areas . If these forests are located near coastal towns , they are called the lungs of these towns .​