2. below are the advatages of a square system, which of the following is no included

a. Better sepervision of the orchard is possible.

b. certain amount of space in the middle of four trees is wasted.

c. irrigation channels and paths can be made straight.

d. operarions like plowing, harrowing, cultivating and harvesting becames easy.

3. it is a system where trees are planted in same way as in a square system except that the diatance between rows will be more than the distance betweem plants in the same row.

a. hexagonal system
b. quincunx system
c. rectamgular system
d. square system

4. it is desirable to have the trees planted in a systemtic way due to the following reasons:

I. orchard operations like intercultural and irrigation are carried out easy.

II. it makes possible the distribution of areas equally for each tree.

III. it makes supervision easier and more effective.

IV. it is well-arranged amd nice to look at

5. it is an imagianry line connecting all points of equal elevation across a slope

a. contour system
b. hexagonal system
c. quincunx system
d. square system​