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