When the soil is too basic, plants do not grow well in it

• GC Acids Bases Salts

When the soil is too basic, plants do not grow well in it. To improve its quality what must be added to the soil?

1. Organic matter
2. Quick lime
3. Slaked lime
4. Calamine solution

Answer

Organic matter (called manure or compost) releases acids which neutralise the excess bases present in the soil and reduces its basic nature.

The correct option is A.