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Consider the following statements: 1. When a soil sample is dried beyond its shrinkage limit, the volume of the soil slowly decrease 2. The plastic limit is always lower than the liquid limit for any type of soil 3. At the liquid limit, the soil behaves like a liquid and possesses no shear strength at all 4. When subjected to drying, the volume of the soil remains unchanged once the water content of the soil goes below its shrinkage limit Which of the above statements are correct? 
A teacher is trying to introduce her class VII students to different kinds of soil. She begins by introducing the names of three kinds of soil i.e. sandy soils, clayey soil and loamy soil. She explains the properties of each soil in term of its particulate nature. She then demonstrates one sample of each kind of soil and shows the students the difference in percolation rate of an examples. How would you evaluate this approach from an inquiry oriented perspective?
Consider the following statements and choose the correct answer:
1. Average density of soil is 2.65 gms. per ml.
2. The spaces present between soil particles in a given volume of soil are called pore spaces
3. Porosity of the soil decreases with the increase in the percentage of organic matter in the soil
4. Macro-pore spaces have little water holding capacity and allow free movement of moisture and air in the soil under normal condition
There are four friends Sharayn, Pinky, Tanisha and Mamta. Two study in J college. one each in X college and A college. Each one is definitely good at one subject and one is good at all the subjects. The subjects are English, Science, Maths and Computers. Of those studying in J college, one is good at Maths and the other in all subjects. Tanisha is studying in Acollege. Pinky is good at Maths. Sharayn is not good at Science. Find who is good at all the subjects.
Good 'Y' is the substitute for good 'X' if
1. A fall in the price of good X leads to the fall in the marginal utility of good Y.
2. A fall in the price of good X leads to the fall in the quantity purchased of good Y. Select the correct answer
Select from the following, the reasons of considering the earthworms as the friends of the farmers: A) Earthworms soften the soil of the field in which they live by digging the soil underneath. B) The tunnels dug by earthworms provide easy passage for air and water into the soil. C) The earthworms eat the weeds and save the main crop. D) The earthworms eat the dead leaves and plants. The dropping of the earthworms makes the soil more fertile. The correct statements are
The below question contains a paragraph of 6 sentences. The first and the sixth sentences are given in the beginning and end and numbered 1 and 6 respectively. The four sentences in the middle are jumbled and labelled P, Q, R and S. Identify the proper order of these four sentences and mark the correct option. 1. Soil is an invaluable natural resource. P. On the other hand, the type of soil determines the flora and fauna of the region. Q. The soil and the living organisms of a region are inter-dependent. R. On the one hand, soil is affected by the flora and fauna of the region. S. It provides raw materials for the plants on which we depend for food. 6. Consequently, do-age to the soil will destroy the balance of nature.
Consider the following statements about adding organic manures to the soil A. They make the soil rigid so as to hold the plants firmly. B. They add inorganic matter to the soil which is considered very rich in plant nutrient. C. They improve the texture of the soil. D. They enhance the water holding capacity of the soil. The correct statements are:
Consider the following statements. a) The Soil found in maximum part of Rajasthan is Aridisols and Entisols. b) Red soil is present in Udaipur and Dungarpur. c) Usara soil is the soil which is located nearby mountain ranges. d) Hadoti Region has Black soil. Which of the statement/statements given above is/are correct?
Which of the following is/are correct about the Black soil? I- Black soil is also known as regur soil II-Black soil has high water retaining capacity III-Most of the Deccan is occupied by Black soil.