The daffodil plant grow best in soil having a pH range of 6.0 to 6.5. If the soil in a garden has a pH of 4.5, which substance needs to be added to the soil in order to grow daffodils?(a) Salt
(b) Lime
(c) Sand
(d) Compost

Correct Answer: (b) Lime .

Explanation: The pH of the soil 4.5 indicates that the soil is acidic and the soil should be treated with a base like quick lime or slaked lime to neutralize it.