Answer:
It is difficult to cross.
Explanation:
The Sahara desert is a vast region about the size of the continental United States that is extremely dry and barren. The lack of water resources in the desert make the land unsuitable for agriculture and human population.
As a result, the Sahara acts as a giant natural wall both economically, culturally, and socially since relations between states to the north and south of the desert are difficult.
We can deduce here that the arrow on the map that points to an air mass moving toward a cold front is: H 1029 - 1018
<h3>What is cold front?</h3>
Cold front actually refers to the boundary that shows a mass of cold air advancing. It goes towards the sector of a low-pressure.
We see that the arrow that is moving from the region of high pressure to the region of low pressure and has blue lines is the answer.
Learn more about cold front on brainly.com/question/11409080
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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.
<h2>Answer: Atoll</h2>
An atoll is an oceanic coral island, usually in the shape of a circular ring, which may be completely or partially closed. It is also called by this term to the set of several small islands that are part of a coral reef, with an interior lagoon that generally communicates with the sea.
Atolls are formed when a coral reef grows around an oceanic volcanic island, as the island sinks into the ocean and disappears underwater, the growth of the coral increases until reaching the sea level, where the action of the wind and the waves erode it and transform it into sand.
It should be noted that this process can take millions of years.
In this sense, the Maldives, an island country located in the Indian Ocean (southwest of Sri Lanka and a few kilometers from India), has these characteristics.
Its territory is organized in 26 atolls and as a country it is constituted by some 1200 islands.
