Seasoning of timber is done A. To make it water proof B. To paint its surface C. To increase its temperature D. To remove water

The correct answer is: D. To remove water.

Seasoning is the process of removing water from timber to make it more stable and durable. This is done by exposing the timber to the air or by using a kiln. The removal of water reduces the risk

Option A is incorrect because seasoning does not make timber waterproof. Timber can be made waterproof by applying a sealant or coating, but this is not part of the seasoning process.

Option B is incorrect because seasoning does not involve painting the surface of the timber. Painting is a separate process that can be used to protect the timber from the elements, but it does not affect the moisture content of the timber.

Option C is incorrect because seasoning does not involve increasing the temperature of the timber. The temperature of the timber may increase during the seasoning process, but this is not the purpose of the process. The purpose of seasoning is to remove water from the timber, not to increase its temperature.