WAEC GCE Nov/Dec 2018 Agric Science Practical Expo Answer
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WAEC GCE AGRIC SCIENCE PRACTICAL
PLEASE NOTE THAT
^ MEANS RAISE TO POWER
/ MEANS DIVISION OR OVER
(1a).
A) To determine the moisture content in the soil
(1b)
I – Evaporating dish
II- Garden soil
III-Tripod stand.
IV- Bunsen burner
1c) i) Wright of the dried soil =
80-35 =45g.
ii) Weight of water lost =
60-45 =15g.
iii) percentage of water lost from
the soil
= Mass of water wafer/ Mass of fresh soil. X 100/1
= 18.75%
(1d) 1 Rainfall
2) condensation
(3) precipitation
======================
2a) Area of farmland 1/2( 70+90) 40
= 1/2 (160) x 40
= 80×40
= 3200m^2
2b) The Spacing will take an area of 4*4 = 16 m^2
The number of banana plants in the farmland
= Total area of farm land DIVIVED BY Area taken by each banana
i.e = 3200m^2/16m^2
= 200
2ci) I. Raging, pole
II. Pins, peg
2cii)
Uses of I
i)for making stating
ii)for making straight linea
Uses of II
i)for making off chain length as measured
ii)for making stating
2ciii)
All the equipment should be clean after use
======================
3a) Ageratum Conizoides
3b) I Flower
II. Flower stalk
III. heat
3c).1. Mechanically by the use 4
Mower or plough
2. Manually by cutlass
3. By the use of chemicals
4. Physically by using cutlass
Methods of Dispersal
1. Wind
2. man
3 Light
3d) Economic importance of weed
1. It serves as feed for livestock.
2. Some weeds are useful as food for humans.
3. It help in checking soil
erosion
4. It serve medicinal purpose
===========================
4a) I- Duct
II- Testis
III- Penis
VI- Seminal Viscule
V – penis coat
IV- epididemis
(b) Duct- it moves the sperm cell
from testis, to penis
– Testis- It helps to stoxe the sperm
cells of spermatozoa.
– Penis- It is used to introduce the
Sperm cell into the female
– Seminal Visicule- It helps to form
a fluid in which the Sperm cells can move.
– Penis Coat: It protects the penis
– epididemis: it produces the
sperm calls.
4c) i) castration
4cii)- Duct will be cut
– the epidermis will be removed
PLEASE NOTE THAT
^ MEANS RAISE TO POWER
/ MEANS DIVISION OR OVER
(1a).
A) To determine the moisture content in the soil
(1b)
I – Evaporating dish
II- Garden soil
III-Tripod stand.
IV- Bunsen burner
1c) i) Wright of the dried soil =
80-35 =45g.
ii) Weight of water lost =
60-45 =15g.
iii) percentage of water lost from
the soil
= Mass of water wafer/ Mass of fresh soil. X 100/1
= 18.75%
(1d) 1 Rainfall
2) condensation
(3) precipitation
======================
2a) Area of farmland 1/2( 70+90) 40
= 1/2 (160) x 40
= 80×40
= 3200m^2
2b) The Spacing will take an area of 4*4 = 16 m^2
The number of banana plants in the farmland
= Total area of farm land DIVIVED BY Area taken by each banana
i.e = 3200m^2/16m^2
= 200
2ci) I. Raging, pole
II. Pins, peg
2cii)
Uses of I
i)for making stating
ii)for making straight linea
Uses of II
i)for making off chain length as measured
ii)for making stating
2ciii)
All the equipment should be clean after use
======================
3a) Ageratum Conizoides
3b) I Flower
II. Flower stalk
III. heat
3c).1. Mechanically by the use 4
Mower or plough
2. Manually by cutlass
3. By the use of chemicals
4. Physically by using cutlass
Methods of Dispersal
1. Wind
2. man
3 Light
3d) Economic importance of weed
1. It serves as feed for livestock.
2. Some weeds are useful as food for humans.
3. It help in checking soil
erosion
4. It serve medicinal purpose
===========================
4a) I- Duct
II- Testis
III- Penis
VI- Seminal Viscule
V – penis coat
IV- epididemis
(b) Duct- it moves the sperm cell
from testis, to penis
– Testis- It helps to stoxe the sperm
cells of spermatozoa.
– Penis- It is used to introduce the
Sperm cell into the female
– Seminal Visicule- It helps to form
a fluid in which the Sperm cells can move.
– Penis Coat: It protects the penis
– epididemis: it produces the
sperm calls.
4c) i) castration
4cii)- Duct will be cut
– the epidermis will be removed
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