Government of India encourages the cultivation of ‘sea buckthorn’. What is the importance of this plant?

1. It helps in controlling soil erosion and in preventing desertification.

2. It is a rich source of biodiesel.

3. It has nutritional value and is well-adapted to live in cold areas of high altitudes.

4. Its timber is of great commercial value.

Which of the statements given above is/are correct?