Chemical fertilizers are harmful for the soil mainly because
A. They increase the salinity of the soil
B. They reduce the nitrogen content of the soil
C. They harden the soil and reduce its fertility in the long run
D. They loosen the soil, thus increasing the scope of erosion
Answer:B
Chemical fertilizers are harmful for the soil mainly because
A. They increase the salinity of the soil B. They reduce the nitrogen content of the soil C. They harden the soil and reduce its fertility in the long run D. They loosen the soil, thus increasing the scope of erosion