Question

is leaching always visible, like muddy water?
yes, clear water never has any leaching in it.
no, non - visible substances can leach through soil.
yes, leaching is always visible.
no, leaching appears as gas, not liquid.

Explanation:

Leaching is the process of water - soluble substances being washed out of the soil. Some of these substances are not visible to the naked eye. For example, many chemical fertilizers (such as nitrates) can leach through the soil. Clear water can still have leached substances in it (like dissolved salts or chemicals). Leaching is not always in the form of gas; it can involve liquid - soluble substances.

Answer:

No, non - visible substances can leach through soil.