According to a latest research, Pakistan is predominantly a dryland country; 80% of its land area is arid and semi arid, 12% sub-humid and 8% under humid climate. Thus, soils of arid & semi-arid regions are vulnerable to a wide range of degradation process. As the case in arid and semi-arid climates elsewhere in south-central/southern Asia and Sub-Saharan Africa; ________ are among the major causes of soil degradation and desertification?

For safe application of pesticide which things are required?

The leaf without petiole is referred as________?

The most important function of Vit. E is in ________?

The process of improving the quality of all human lives including sustenance, self esteem and freedom________?

A and B horizon is called as________?