Question
Which of the following statements is/are true about soil
pH? Statement A: Acidic soils have a pH value below 7, indicating high alkalinity. Statement B: Lime can be applied to acidic soils to raise the pH and reduce acidity. Statement C: Soil pH influences nutrient availability and microbial activity.Solution
Acidic soils have a pH value below 7, indicating high acidity, not alkalinity. A pH value below 7 indicates increasing acidity as the value decreases. Lime, in the form of calcium carbonate or other alkaline materials, can be applied to acidic soils to raise the pH and reduce acidity. This process is known as liming and is done to adjust soil pH for optimal plant growth. Soil pH influences nutrient availability in the soil. Different nutrients have varying solubilities at different pH levels, affecting their availability to plants. Additionally, soil pH also influences microbial activity, as different microorganisms have different pH preferences for optimal growth and function.
Statement: A ≤ D < C = B > E ≥ F < G
Conclusions: I. B > A
II. C < F
Which of the following letter-clusters will replace the question mark (?) in the given series?
RI, YB, FU, MN, TG, ?
Select the option that is related to the third word in the same way as the second word is related to the first word. (The words must be considered as me...
‘A × B’ means ‘A is B’s brother’.
‘A ÷ B’ means ‘A is B’s sister’.
‘A + B’ means ‘A is B’s father’.
Which of the following numbers will replace the question mark (?) in the given series?
304, 261, 221, 184, ?, 119
Select the correct mirror image of the given figure, when the mirror is placed at line MN as shown.
‘A @ B’ means ‘A is the wife of B’
‘A = B’ means ‘A is the brother of B’
‘A # B’ means ‘A is the son of B’
...
72 is related to 96 following a certain logic. Following the same logic, 66 is related to 88. Which of the following numbers is related to 104 using the...
Select the set in which the numbers are related in the same way as are the numbers of the following sets.
(NOTE: Operations should be performed o...
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