Discussion
Which of the following options regarding the effects of water logging on agricultural land is INCORRECT?
Answer: C
The incorrect statement is that waterlogging increases the capillary water available to plants. In a waterlogged soil the pores are filled with water and air is shut out, so roots cannot get oxygen, and plants do not benefit from the extra water. The other effects occur: the soil becomes colder, since the water has a high heat capacity and evaporates; salts are brought to the surface by capillary rise and deposited as water evaporates; and weeds and other wild plants grow in the wet soil, which cuts crop yield.
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