Tamil Nadu’s forest cover is approximately:

Less than 10% of its geographical area
15-20% of its geographical area
25-33% of its geographical area
More than 35% of its geographical area

The correct answer is: a) Less than 10% of its geographical area.

Tamil Nadu’s forest cover is approximately 10.8% of its geographical area. This is lower than the national average of 21.9%. The state’s forest cover has been declining in recent years, due to factors such as deforestation, urbanization, and industrialization.

Option b) is incorrect because Tamil Nadu’s forest cover is actually less than 15% of its geographical area.

Option c) is incorrect because Tamil Nadu’s forest cover is actually less than 25% of its geographical area.

Option d) is incorrect because Tamil Nadu’s forest cover is actually less than 35% of its geographical area.