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What is the use of biochar in farming? 1. Biochar can be used as a part of the growing medium in vertical farming. 2. When biochar is a part of the growing medium, it promotes the growth of nitrogen-fixing microorganisms. 3. When biochar is a part of the growing medium, it enables the growing medium to retain water for longer time. Which of the statements given above is/are correct?
Some small cubes of same height 7 cm but variable length and width are put inside a large cuboid of height 21 cm. Length and width of cuboid is 32 cm and 24 cm, respectively. Small cubes are put such that cubes at the bottom most layer is of similar base area; second layer contains all the cubes of similar base area and third layer have all the cubes of similar base area. Which of the following statement(s) given below is / are TRUE? A: If side of each small cubes at bottom most layer is 8 cm, then maximum number of small cubes that can be put at bottom most layer is 12. B: If maximum of 48 cubes can be put at second layer, then side of each cube at second layer is 6 cm. C: If side of each small cubes at third layer is 1.6 cm, then maximum number of small cubes that can be put at third layer is 300.
There are two medium L1 and L2 of refractive index n1 and n2 respectively (n2  > n1 > 1). In which of the following condition the total internal reflection may occur: a) When the light travel from medium L1 to medium L2. b) When the light travels from medium L2 to medium L1. c) When the light travel from medium L1 to air. d) When the light travels from air to medium L2. Which of the following statement is correct?
Which of the following method is useful for detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium?
The nutrient concentration range in which added nutrient will not increase yield but can increase nutrient concentration is referred as
Thermal death of microorganisms in the liquid medium follows first order kinetics. If the initial cell concentration in the fermentation medium is 108 cells mL-1 and the final acceptable contamination level is 10-3 cells, for how long should 1 m3 medium be treated at temperature of 120°C (thermal deactivation rate constant = 0.23 min-1) to achieve acceptable load?
In the following question, sentences of a paragraph have been jumbled and labelled as A, B, C, and D. You are required to rearrange the jumbled sentences of the paragraph and mark your response accordingly by selecting the correct option. A: It has thin organic and organic-mineral layers overlying a yellowish-brown leached layer resting on an illuvium red layer. B: They are usually poor growing soils, low in nutrients and humus, and difficult to cultivate because of its low water holding capacity. C: Red soils are generally derived from crystalline rock. D: Red soil is a type of soil that develops in a warm, temperate, moist climate under deciduous or mixed forest.
Which of the climate shows the given characteristics? Suitable for low growing mosses, lichens and flowering plants Region of permafrost where the subsoil is permanently frozen During summer very long duration of daylight Short growing season and waterlogging support only low growing plants
Read the following passage and answer the item that follows. Your answers to this item should be based on the passage only. The IMF has pointed out that the fast growing economies of Asia face the risk of falling into 'middle-income trap'. It means that average income in these countries, which till now have been growing rapidly, will stop growing beyond a point - a point that is well short of incomes in the developed West. The IMF identifies a number of causes of middle-income trap-none of which is surprising-from infrastructure to weak institutions, to less than favorable macroeconomic conditions. But the broad, overall cause, says IMF, is a collapse in the growth of productivity. Which among the following is the most logical, rational and critical inference that can be made from the above passage?
Choose the correct relation for a combination of two prisms to be achromatic. (Where for the first prism: μv = refractive index of the medium in violet light, μr = refractive index of the medium in red light A = angle of the prism; For the second prism: μ′v = refractive index of the medium in violet light, μ′r = refractive index of the medium in red light, A’ = angle of prism.)