The diagrams below illustrate three different crops. 

Study them and answer the questions that follow.

 

a) State the method of propagating each crop. 

 

b) List three varieties of oil palm. 

 

c) Mention three diseases of okro.. 

 

d) State three pre-planting operations that are generally carried out when cultivating okro. 

 

e) List three uses of cashew.