Question

Acidic soil is caused by _____.

calcium (Ca)
hydrogen ions (H +)
potassium (K)
sodium (Na)

Answer 1

Acidic soil is primarily caused by hydrogen ions (H⁺). The presence of a high concentration of hydrogen ions in the soil results in lower pH, which is a characteristic of acidic soils. Other factors such as organic matter decomposition, rainfall, and the presence of certain minerals can also contribute to soil acidity, but the key factor is the concentration of hydrogen ions.