(a) Write the percentage of land area that was covered by forests by the end of the last century.
(b) Describe any two practices that led to deforestation.
(c) State the consequences of deforestation.
(d) Suggest a method to overcome deforestation.

Explanation

(a) About 30 per cent of the land of India was covered by forests.
(b) `CO_(2)` concentration in the atmosphere because trees that could hold a lost of carbon in their biomass are lost with deforestation.
(c) Loss of biodiversity due to habitat destruction, disturbs hydrological cycle, causes soil erosion and may lead to destrification in extreme cases.
(d) Reforestation is the process to restoring a forest that once existed but was removed at some point of time in the past. Planting of trees with due consideration to biodiversity.