Bact area used in several ways, they also used in bio mining. What is bio mining? Crow organisms are used in extraction of valuable metals. So the process is called bio mining. During bio mining, it means during the extraction of different costly metals, the bactias are used. So by using of that bact area, they are reducing the 50 percent of the investment. The next they also use it as bio sensors. Bio sensors means way the toxic pollutants are present more that can identified by bact area. So the phenomena is called bio sensors. Bio sensing. So the bacteria are work as bio sensors also. In genetic engineering, to prepare, to develop, biogenic, it means genetically modified crabs by using of the different types of bacteria. One of the example is, theobasylus d nitrificance. It is used in preparation of different types of beta crops. Next in coming to the nutritional industry, so single cell proteins, the single cell protein like using bacteria that is a bravee bacteria. Baby bacterium is used as single cell protein. Here, very important topic, very important point that is living magnet. Water living magnets means, where the magnetic field is more, there the bacteria is directed or there the bacteria is weak. Such type of bacteria are called magnetotactic bacteria. So by using of this magnetotactic bacteria, our scientist easily found the magnetic field in depth of the oceans. So you see here, best example of magnetotactic bacteria that is at pass pyridnam magnetotactic term. These are the useful purposes of the bacteria. When you come to the plants, plant this is a plant bacterial, this is also caused by few of the bacteria. For example, you take the citrus canker. Citrus canker sir, caused by chantomona citric. Crown gold is of apple, caused by agro bacterium, tumifiancy. Next, blighted is of paddy. Blighted is of paddy, cast by pseudomonas. Sorry. Karusha.