What is the purpose of knowing the pH of soil?

• A. To see which is the best place for growing, and what kind of base to use for neutralising it.
• B. To determine soil color
• C. To estimate rainfall
• D. To measure soil texture

Answer: (A)

Understanding soil pH helps you judge how well plants can access nutrients and whether the soil environment is right for growing. The pH tells you how acidic or alkaline the soil is, and this affects nutrient availability and microbial activity in the roots’ zone. Knowing the pH lets you decide if a site is suitable for growing certain plants and, if needed, what changes to make. If the soil is too acidic or too alkaline, you can adjust it by adding a base (like lime) to raise pH or by adding acids to lower it, aiming for a level where nutrients are most available to the crops you want to grow. This makes growth healthier and ensures the roots can take up essential minerals. Other options like soil color, rainfall, or texture are not used to judge nutrient availability in the same way.