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Graftage
Graftage is the art of inserting a part of one plant into another plant in such a way that the two will unite an continue their growth...
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Bangladesh is a tropical country. Its climatic factors like temperature, rainfall, air, light, etc are favorable for the production of var... -
The first important thing that has to be done to maintain a healthy colony of fish is to see that pollution does not affect the condition of...
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Breathin : Fish have a special mechanism in the shape of their gills for extracting oxygen from the water. The gills are positioned on e...
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