* The pH level of the soil was alkaline, meaning it had a pH value greater than 7.

* The doctor prescribed an alkaline diet to help reduce the acidity in the patient's stomach.

* The water in the lake was alkaline, which made it ideal for growing certain types of plants and animals.

* The cleaning product had an alkaline formula that was effective at removing dirt and grime.

* The chemical reaction produced an alkaline solution, which could be used to neutralize acids.

* The laundry detergent contained alkaline agents that helped to whiten and brighten clothes.

* The scientist used alkaline indicators to measure the pH level of different solutions.