question_answer

  The conditions preferred by some plants are

Plant	pH
Apple	5.0 - 6.5
Potato	4.5 - 6.0
Black currant	6.0 - 8.0
Mint	7.0 - 8.0
Onion	6.0 - 7.0
Strawberry	5.0 - 7.0
Lettuce	6.0 - 7.0

(a) Which plants grow well over the largest range of pH values? (b) Which plant can grow in the most acidic soil? (c) Which plant can grow in the basic soil?

Answer:

                  Most of the plants grow best when the pH of the soil is close to 7. If the soil is too acidic or too basic, the plants grow badly or do not grow at all. As quicklime, slaked lime or chalk are all alkaline substances, these would be added to the soil by the farmer when soil is highly acidic.