how many varieties of crops are cultivated in your locality? among thses varieties od corps, which is the most preferred? why?

i need the choices if i am going to answer this question.

Each meridian forms half of a great circle, assuming a spherical earth. meridians intersect lines of latitude (parallels) at right angles. the spherical earth is divided into  360 degrees   east-west. lines of longitude range from 0° to  180° to the east and from 0° to -180 ° to the west of the prime meridian.