Answer:
Hope this helps
Explanation:
6m times 1.5m= 9m
9m + 8cm= 9.08 meters
9.08meters times 10km/h= 25.2 m/s
25.2 m/s the area will irrigate in 30 minutes
The enormous amount of ethnicities and languages in the countries of Sahara contributed to mainly bad and unwanted things to be happening. In lots of the countries there's big devidence between the ethnic groups and it is not unusual that they have clashes that very often have devastating consequences. The countries of the southern half of Sahara usually have clashes on daily basis and there's open hatred and violence between the different ethnic groups, which also leads to the governments having enormous difficulties in the control of some regions. In the northern half of Sahara there has been a systematic genocide going on for quite some time that is kept behind the curtains, like the example with the Barbers and the Jews of North Africa whose numbers have been significantly falling down and they have been massacred systematically by other groups.
A region can be studied over many different periods, but a theme applies to only one period is one major difference between a region and a theme when studying history.
<h3>What is
region in history?</h3>
Regional history is historiography devoted to a physically confined area below the level of the Empire or the nation state, particularly in Germany; the area can be determined by the governance of a territory, as well as cultural, dialectal, economic, and other elements.
Thus, option D is correct.
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