Why Does Irrigated Farmland Get More and More Salty Over

question 99

Multiple Choice

Why does irrigated farmland get more and more salty over time?

• A)Salts and minerals are deposited from water by evaporation.
• B)Salt water is used to irrigate the lands.
• C)Silty water lays down layers of organic matter, which contain a large degree of charged particles and salts.
• D)The plants extract the minerals and exchange them for salty ions like sodium.
• E)all of the above

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