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1. Chemical used for organic farming; neutralizing acidic soil?
Answer: Potassium Bicarbonate
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Chemistry-(Objective)
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MCQ->Read the following passage carefully and choose the most appropriate answer to the question out of the four alternatives. When I think of my family's history on the land. I experience a pang of regret. Unlike much of the arid West, where the land has gone virtually unchanged for centuries, my place of origin, western Kansas, has been torn up by agriculture. The flat plains, excellent soil, and sparse but just adequate rainfall permitted farming therefore farming prevailed, and a good 90% of the original sod prairie is gone. The consequence, in human terms, is that our relationship to our place has always felt primarily mercantile. We used the land and denied, or held at bay, its effect on us. Yet from my earliest childhood, when the most of the Kansas prairie was still intact, I 've known that the land also had a romantic quality. I've felt moved by the expanse of it , enthralled by size. I take pride in my identity as a plains daughter. What factor changed the entire landscape of Kansas?...
MCQ->260 g of wet soil was taken in a pycnometer jar of weight 400 g in order to find the moisture content in the soil, with specific gravity of soil particles 2.75. The weight of soil and remaining water filled in pycnometer without air bubbles was 1415 g and the weight of pycnometer filled with water alone was 1275 g. The moisture content in the soil is...
MCQ->The laboratory tests on a sample yielded the following results : Plasticity index : 32 % Liquidity index : - 0.15, Activity number: 1.58. Which of the following inferences can be drawn ? 1. The soil is very stiff. 2. The soil is medium soft. 3. The soil is highly plastic. 4. The soil is medium plastic. 5. The soil is active. Select the correct answer using the codes given below :...
MCQ->Consider the following statements. Identify the right ones I. Soil pollution is any physical or chemical change in the soil conditions that may adversely affect the growth of plants and other organisms living in or on it. II. Most soil pollutants are agricultural chemicals, primary fertilizers and pesticides.?...
MCQ->For determining the moisture content of a soil sample, the following data is available Weight of container = 260 g, Weight of soil sample and = 320 g container, Weight of soil sample (dried) and = 310 g container. The moisture content of the soil sample, is...
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