Question

sulphur and soil which is a mixture

Answer 1

Explanation:

The cheapest way to lower the soil pH is to add elemental sulfur to the soil. Soil bacteria change the sulfur to sulfuric acid, lowering the soil pH. If the soil pH is greater than 5.5, apply elemental sulfur (S) to decrease the soil pH to 4.5 (see Table 1). Spring application and incorporation work best.

Answer 2

Answer:

Soil.

Soil is a mixture because it doesn't has any fixed chemical formula.