Answer:
Enzymes are specialized proteins that soil microbes use to make nutrients available for microbial and plant uptake, by breaking down organic material into small enough molecules for plants to absorb through their cell wall
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Answer:
1.It produces silk which is a high quality fibre
2.to destroy the gelatinious substance inside cocoon so as to obtain silk thread
3.To avoid it from hatching 
4.they carry pollen grains while roaming plant to plant and help in cross pollination
 
        
             
        
        
        
Answer: On topographic maps, elevation is shown by using contour lines. The difference in elevation between one contour line and the next is called the contour interval. The contour interval is selected based on the relief of the area being mapped. Every fifth contour line is darker than the four lines one either side of it.
Explanation: