The correct answer is: d) All of the above.
Intensive cultivation practices in Bihar can lead to soil depletion, increased reliance on fertilizers and pesticides, and reduced biodiversity.
Soil depletion is the loss of nutrients from the soil. This can happen when crops are grown in the same field year after year without being rotated with other crops. It can also happen when farmers use too much fertilizer or pesticides. Soil depletion can make it difficult for crops to grow and can lead to lower yields.
Increased reliance on fertilizers and pesticides can also lead to problems. Fertilizers can pollute water supplies and runoff into rivers and streams. Pesticides can kill beneficial insects and other wildlife. They can also accumulate in the soil and in the bodies of animals and humans.
Reduced biodiversity is another problem that can be caused by intensive cultivation practices. Biodiversity is the variety of life on Earth. It includes the variety of plants, animals, and microorganisms. When farmers plant the same crops year after year, they reduce the diversity of plants in the field. This can make the field more susceptible to pests and diseases. It can also make it more difficult for wildlife to find food and shelter.
Intensive cultivation practices can have a number of negative impacts on the environment. It is important for farmers to be aware of these impacts and to take steps to minimize them.