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 Agricultural Practical

(3a)
I – Grasshopper
II – Weevil
III – Cotton stainer

(3b)
I – Grasshopper exhibits incomplete metamorphosis that is Egg-nymph-adult

(3c)
(i) Transmission of diseases which are harmful to crops.
(ii) It means to stunted growth of plants.
(iii) It leads to yellowing of leaves due to the absence of micro nutrients like phosphorous
(iv) It leads to death of plants

(3d)
(i) Setting traps like funnel entrance traps with trigger mechanism
(ii) Use of avicides
(iii) Use of fenced traps
(iv) Use of poison baits

4a)
I- Duct
II- Testis
III- Penis
VI- Seminal Viscule
V – penis coat
IV- epididemis
4b)
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.
4ci)
castration
4cii)
– Duct will be cut
– the epididemis will be removed

2a)
Area of farmland =1/2(70+90)40
=1/2(160)*40
=80*40=3200m^2
2b)
The spacing will take an area of 4*4 =16m^2
The number of banana plants in the farmland
=total area of farm land/area taken by each banana =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

1a)
To determine the moisture content in the soil
1b)
I. evaporating disk
II. Garden soil
III. Tripod stand
IV. Bunsen’s Burnes
1ci)
80-35=45g
1cii)
60-45=15g
1ciii)
=Mass of water/mass of fresh soil*1/100
=15/80*100/1=18.75%
1d)
i)rainfall
ii)condensation
iii)precipitation