Option 1: Solar energy - Solar energy is an example of a renewable resource, but it is not exhaustible. It is continuously provided by the sun and will not run out.

Option 2: Water in usable condition - This is the correct answer. Water is a natural resource that is renewable, as it can be replenished through the water cycle. However, if water is not used and managed properly, it can become limited or unavailable in certain regions.

Option 3: Soil - Soil is a natural resource that is nonrenewable. It takes thousands of years to form, and once it is degraded or eroded, it is difficult to restore to its original condition.

Option 4: Landscape in its natural condition - This option is vague and does not clearly specify which aspect of the landscape is being referred to. However, if we assume it refers to biodiversity or natural habitats, then it would be considered an exhaustible resource as it can be destroyed or degraded by human activities.

In conclusion, water in usable condition is an example of an exhaustible but renewable natural resource because although it is renewable through the water cycle, it can become limited or unavailable if not properly managed.