Which of the following is a result of "Deforestation"?

All of the above

Deforestation or forest clearance is the removal of a forest or stand of trees from land that is then converted to non-forest use or for facilitation of human activities. Following are the results of deforestation:

1. Land degradation
2. Increased Greenhouse Gases 
3. Biodiversity loss
4. Air pollution
5. Soil Erosion 
6.  Flooding