What is a plough?

What is ploughing?

What is glucagon? What is its function?

What is Biology? What use the main branches Biology.

What is a storage cell?What does it store and how?

If Rs.1771 is needed for making 7 ploughs, how much will be needed for making 12 ploughs?

Biofertillzer is 1. farmyard manure consisting of a mixture of cattle dung and crop residue 2. green manure in which quick growing crop is cultivated and ploughed under the soil 3. a cyanobacteria like Anabaena species living in the cavities of Azolla species 4. symbiotic bacteria like Azotobacter which fix atmospheric nitrogen

What is the full form of PVC? What is its monomer? What is Marsh gas?

What is fats & oil? What are the function of it?

What is acrosome? What is its function?