Statement 1 is incorrect. Moringa oleifera, commonly known as the drumstick tree, is a deciduous tree, not an evergreen tree. It sheds its leaves seasonally. Moringa is also a nitrogen-fixing plant, which means it can help restore nutrient balance in the soil by adding nitrogen naturally.

Statement 2 is incorrect. Tamarindus indica is not endemic to South Asia. It is native to tropical Africa and later spread to South Asia and other tropical regions. While tamarind is extensively grown in India, it is also widely cultivated in Southeast Asia, Africa, and the Americas.

Statement 3 is correct. Tamarind is widely collected as minor forest produce by local communities and forest dwellers in many parts of India, especially in states like Madhya Pradesh, Chhattisgarh, Odisha, and Jharkhand.

Statement 4 is correct. India exports tamarind to various countries, especially in Southeast Asia, the Middle East, and Europe. Moringa seeds are also exported due to their high medicinal and industrial value.

Statement 5 is correct. Moringa seeds have a high oil content, which can be processed into biodiesel. Tamarind seeds contain hydrocarbons and polysaccharides that can also be explored for biofuel production.