The percentage of land area covered by forests in Bihar is:

Less than 10%
10-20%
20-30%
Over 30%

The correct answer is: a) Less than 10%.

Bihar is a state in eastern India. It is the third-largest state in India by population, after Uttar Pradesh and Maharashtra. The state has a total area of 94,163 square kilometers (36,357 sq mi). Of this, only 6.9% is forested. This means that less than 10% of the land area in Bihar is covered by forests.

The main reason for the low forest cover in Bihar is deforestation. Deforestation is the clearing of forests for other uses, such as agriculture, mining, and development. It is a major cause of environmental degradation and climate change.

The deforestation in Bihar has had a number of negative impacts on the environment. It has led to soil erosion, water pollution, and a decline in biodiversity. It has also contributed to climate change.

The government of Bihar has taken some steps to address the problem of deforestation. It has banned the felling of trees in certain areas and has launched a number of afforestation programs. However, these efforts have not been enough to reverse the trend of deforestation.

The deforestation in Bihar is a serious problem that needs to be addressed. It is important to protect the forests in Bihar for the sake of the environment and the people who live there.

Here is a brief explanation of each option:

  • Option a: Less than 10%. This is the correct answer. As mentioned above, only 6.9% of the land area in Bihar is forested.
  • Option b: 10-20%. This is incorrect. As mentioned above, only 6.9% of the land area in Bihar is forested.
  • Option c: 20-30%. This is incorrect. As mentioned above, only 6.9% of the land area in Bihar is forested.
  • Option d: Over 30%. This is incorrect. As mentioned above, only 6.9% of the land area in Bihar is forested.