How have the croplands deteriorated?
The growing population needs more food. So, different chemical fertilizers are used to produce more and more food. In the long run these fertilizers deteriorate the quality of the soil, i. e., the croplands.
The growing population needs more food. So, different chemical fertilizers are used to produce more and more food. In the long run these fertilizers deteriorate the quality of the soil, i. e., the croplands.