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.
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I believe the answer is "D"
Answer:
GMOs refers to organisms that have had changes in their DNA using genetic engineering and the threat is to make ssure they are safe for people because if this genetic modifications.
Explanation:
GMO food is food produce from organisms that have been genetically modified and people is concerned about the dangers of eating this food. However, scientific data have said that it doesn't generate a risk to human health but every GMO food needs to be examine.
