This article provides a summary on Views Regarding the Time of Origin of Earliest Angiosperm. We have to depend almost entirely upon fossil evidence for the determination of the first traces of angiosperms. Unfortunately, due to lack of proper fossil records, palaeobotanical studies have not been able to solve the mystery about the earliest angiosperms. There are several views regarding [...]
The below mentioned article provides a short notes on Geographic Information System (GIS). GIS or geographic information system combines layers of information about a place or area to give a better understanding of it. For a full GIS, one requires hardware (computers and peripherals), software, data and sound analysis methods for interpreting the results generated by the GIS. GIS may [...]
The following points highlight the top six factors affecting remote sensing in vegetation classification. The factors are: 1. Brightness 2. Greenness 3. Moisture 4. Leaf Optical Properties 5. Electromagnetic Wavelengths 6. Other Factors. Vegetation Classification: Factor # 1. Brightness: It is calculated as a weighted sum of all the bands and is defined in the direction of principal variation in soil reflectance. Vegetation [...]