The correct answer is option 1.

Option 1 states that the application of lime makes the soil acidic, which is not correct. Lime, also known as agricultural lime or calcium carbonate, is used to raise soil pH and reduce acidity. When applied to the soil, lime neutralizes the acidity and increases the pH, making the soil more alkaline.

Option 2 states that high acidity in soil is typical of a humid climate. This is generally true because rainwater in humid climates tends to be more acidic, which can contribute to higher soil acidity.

Option 3 states that increasing soil acidity results in declining soil fertility, which is generally true. Most plants prefer a slightly acidic to neutral pH range for optimal growth. When soil becomes more acidic, it can affect nutrient availability and microbial activity, leading to reduced productivity and fertility.

Option 4 states that an arid climate is characterized by alkaline soil, which is generally true. In arid climates, rainfall is limited, and as a result, there is less leaching to wash away alkaline minerals. This can lead to the accumulation of alkaline minerals in the soil, making it more alkaline.

In summary, option 1 is not correct because lime is used to make soil less acidic