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shusha [124]
3 years ago
5

How long does it take 1 inch of topsoil to form

Geography
1 answer:
prisoha [69]3 years ago
5 0
it normally takes at least 100 years and often over 500 years

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Irrigation machinery has __________ the amount of irrigated land in the US.
Shkiper50 [21]

Irrigation machinery has <u>quadrupled </u>the amount of irrigated land in the US.



Irrigation refers to the act of artificially providing water to land to support the development of crops. It is an antiquated agrarian system and may have been honed as ahead of schedule as 5000 B.C. along the banks of such consistently flooding streams as the Nile. Channels were burrowed to broaden the region secured by the surge, and dams were raised to trap water on the land after the floodwaters had died down. The advancement of preoccupation dams and of water-lifting machines allowed the water system of terrains lying over those typically come to by floodwaters. Remainders of these antiquated structures have been found in Egypt, where all farmlands are flooded; Iraq; Lebanon; Syria; China; India; Peru; Mexico; and the United States. Present day water system frameworks are as yet in view of these two key building developments.

8 0
3 years ago
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Identify the primary way in which the amount of carbon dioxide in the atmosphere can be increased.
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A any type of burning increases carbon dioxide
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Batay sa mga sitwasyong nabanggit ano ang nasyonalismo​
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When is full employment achieved?
Anuta_ua [19.1K]

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Please help!!!!
jok3333 [9.3K]

The plate labeled with A is the South American plate, the one labeled with B is the African plate, and the one labeled with C is the Australian plate.

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The three plates that are marked on this map are the South American, African, and Australian (Indo-Australian) plates. All of these three plates have a core of continental crust which is surrounded by oceanic crust. The three continents on these plates are South America, Africa, and Australia (plus the subcontinent of India). Despite the three continents being separated by oceans between them at present, it was not like that throughout the past.

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  • As it stands, there is no evidence that these plates will merge again in the next few million years, as the South American plate moves west, the African is actually splitting into two plates, and the Australian is moving toward northeast.

Learn more about divergent plate boundaries brainly.com/question/12435803

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