Answer:
<u>Two types of gis data representation method are raster and vector</u>
Explanation:
- In a GIS the data that is represented by the pints, line, and polygons is raster data and it's stored in the real world like phenomenon also known as the discrete data.
- Raster data is made up of pixel values and attributes that are associated with its color values, data is represented by the grids of cells. Stores spatial data more
- Another type of data model being the vector model that focuses on lines, polygons and area points are expressed by the single point reference. For example, cities on a map. A line like the rivers the roads the railroads, trails, and topographic and polygons include the lakes, park boundaries, buildings, etc.
- Vector data is most compatible with the relational database environments. Vector file sizes are hence usually very smaller than raster data. Raster data is computationally less expensive as compared to vector graphics. Stores nonspatial data.
Answer:
The K-T extinction event is the global mass extinction that has taken place about some 65 million years back due to the asteroidal impact. This mass extinction event has wiped almost 75% of the plants and animal species from the earth's surface. The dinosaurs were extinct and very animal species have survived and undergone evolution in due course of time.|
The Cenozoic era started after the K-T mass extinction event, i.e from about 65 million years to the present.
Thus, the Cenozoic era is also known as the age of mammals because mammal were more abundant and diverse then. Many flowering plants evolved during this time and the earth experienced global cooling.
Answer:
closed its doors to Western trade
Explanation:
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