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The U.S. Department of Energy recently discovered the world’s largest Lithium reserve beneath California’s Salton Sea. It is a shallow, saline lake located in the lower Colorado Desert, southern California, USA.  It is a geological depression tucked between mountain ranges and lying below sea level. The area that is now the lake was formerly a salt-covered sink or depression (a remnant of prehistoric Lake Cahuilla) about 280 feet (85 metres) below sea level until 1905–06, when diversion controls on the Colorado River broke a few miles below the California-Mexico border and floodwaters rushed northward, filling the depression.
Which of the following primary tillage operation is used to invert the soil partially or completely?
The indicator plant for zinc deficiency is ____
According to the mobility of element in soil; which of the following is considered as Immobile in soil.
Which of the following is a complex fertilizer?
Which of the following element is mobile in soil but immobile in plants?Â
 The root nodule of legumes contain a pink pigment which has affinity for oxygen is
Sodic soils are also known as_____
Which of the following factors are considered to be the most active in the process of soil formation?
Which factor significantly influences the decomposition rate of organic matter in soils?
The soils of grassland ecosystems, characterized by a thick, dark surface horizon comes under which soil order?