Answer:
C). Increased nitrogen levels in ponds
Explanation:
Deforestation occurs when the trees of the forest are cut down and that area is cleared permanently for the other uses like creating new farmland for livestock and for crops.
It causes a negative impact on the environment and may lead to soil erosion, and loss of habitat of animals living in that area. it also disturbs the environmental conditions.
The increased level of nutrients like nitrogen, phosphorous is caused due to leakage of fertilizers from the soil field into the pond by eutrophication.
Hence, the correct answer would be option C.
