Friday 11 November 2016

Neco Gce 2016 Agriculture Science Practical Answers – Nov/Dec Expo



AGRIC SC


1a)
A- THEODOLITE 
B- CROSS STAFF
C- GUNTERS CHAIN
D- RANGING POLE 

1b)USED IN SURVEY 


1C)
A-USED FOR MEASURING HORIZONTAL OR VERTICAL ANGLE OR PLANE 
B- UNKNOWN
C-USED FOR TAKING SHORT OR DETAIL MEASUREMENT OF LENGTH 
D- IT IS USED FOR PROPER VISIBILITY FROM FAR DISTANCE


1D)MEASURING TAPE


1e)
i)ALL INSTRUMENT SHOULD BE CLEAN AFTER USE
ii)THEY SHLD BE KEPT IN A COOL DRY PLACE
iii)KEEP AWAY FROM SUN AND RAIN
iv)REPLACE WORN OUT PARR WHEN THEY NEEDED 
v}MATERIAL SHOULD BE HANDLE BY SURVEYOR ENGINEER IN THE RIGHTFUL WAY


2a, I - silica dish 
ii - humus 
iii - 
 iv - trixd stand  
V - Bunsen burner 


2b - to fine the water content of the soil


2c
 i)weight the silica dish empty
ii)put a small quantity of soil in the dish
iii)place the dish on the oven
iv)cool the dish and weight


2d, 
i) 150 - 120 = 30g
ii) 30/150 *100 = 20%


3a) 
F- aphid
G- beetle


3b) 
F- piercing and sucking
G- Boring ( biting and chewing)


3c) 
F feed on cell sap of plant while G feeds and destroy crops produce ( e.g yam)


3d) 
F- use of insecticide
G- adequate and proper storage


3e)
I) egg
Ii) larva
Iii)....


3f)
I) it destroy crop seedlings
Ii)it constitute nuisance in farm land
Iii)it reduce crop yield
Iv) it reduce crop quality


4a 
H-horn
I-femur
J-tail


4b) ​H​ it Serves as protection
    ii. Used as defence
  
      ​I​ (i) it gives the body shape
           (ii)it is used for making bone meal

     ​J​  i)it is a source of food
            ii)it is used for decoration


4c.)     i)cattle
          ii)sheep
          iii)Ram


4d.)Dehorning


4e.)i -Drying
      ii-burning
      iii-grinding

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