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See The Past Waec Gce Agric Answers
OBJ
1-10 DCBCBCDACA
11-20 BBABCCBCDB
21-30 ADDADDDABB
31-40 CDCDCCDABC
41-50 BCDBDBAACC

ESSAY
1a)
I) unpredictable climate:
-Droughts or prolong periods without rain results in poor yields
-Flooding results in erosion
-Inadequate sunshine also reduces photosynthetic ability of plants
II) inadequate rural infrastructure:
-This results in urban drift ie massive exodus to big cities for better standard of living
-Results to massive reduction in agricultural work force in rural settings
-Results in low agricultural production
III) Diseases:
-Result in increase in agricultural cost of production
-Reduce the quality of farm produce
-Reduce farmers income
1bi)
-Contour ditch
-Border dyke
-Furrow irrigation
-Wild flooding
1bii)
-High salt problems or salinity of soil which prevents proper growth of crops
-Transmissions of diseases is possible
-There is a build up and spread of pests
-Pollution of the environment is possible
-There is high cost of equipment
-Vectors of diseases breed freely

2ai)
Economic factors:Most farmers are poor and cannot to bug machines such as tractors, plough,ridges, harrows,harvester
2aii)
Technical know-how; most famers jack the required Knowledge and skills to operate sophisticated machines
2aiii)
Small farm holdings; it is not economical for small scale farmers since it is very expensive to operate
2b)
-Piercing and sucking crop pests;These pests (mostly insects) have mouth parts that are modified and adapted for piercing and sucking plant tissues examples of them are aphid, moths,cotton ,stainer,cocoa thrip
-Biting and chewing crop pests; These are mostly vertebrate and invertebrates pests that posses strong mouth parts for adapted to their mode of feeding examples are grasshoppers, crickets, termites
-Boring crop pests; These are insect pests whose mouth parts are adapted for boring holes and destroying tissues of seeds sem and fruits examples are weevils, stem borers and fruit fly and beetles

3ai)
-Long lactation periods
-Immunity and resistence from diseases
-Healthy variety
-Long life
3aii)
-Camels
-Horses
3aiii)
-It can perform more tedious jobs than man
-It can handle many farm operations
-It can be controlled or easy to operate
-They are much stronger than man

4a)
ABIOTIC COMPONENT:
-light
-temperature
-water
-atmosphere and wind
4b)
IMPORTANCE OF CARBON CYCLE:
-it is the basis of soil fertilizer
-it increases soil nutrients
-it promotes the soil structure
-it is both biological and physical health of the soil
-it is a buffer against harmful substances
4c)
spacing 40cm*40cm
but 100cm=1m
40cm/100=0.4m
spacing=0.4m*0.4m
spacing=0.16m
4di)
LIST OF FIBRE CROPS:
-Kenaf:an edible seed
-Beans:an edible seed
-Indian hemp:the dog bane
-hemp:a strong fibre
-Flax:produces linen
4dii)
BEVERAGES:
-Whole milk
-Skim milk
-Cocoa
-Barley
-Grapes
-chicons
-coffee
-Vegetable juice

5ai)
-Beak/Mouth
-Esophagus
-Crop
-Proventriculus
-Small Intestine
5aii)
-Beak/Mouth: The Beak/Mouth contains glands that secrete saliva, which wets the feed to make it easier to swallow. Also, the saliva contains enzymes, such as amylase, that start the digestion process
-Esophagus: The esophagus is a flexible tube that connects the mouth with the rest of the digestive tract. It carries food from the mouth to the crop and from the crop to the proventriculus
-Crop: The crop is an out-pocketing of the esophagus and is located just outside the body cavity in the neck region. Swallowed feed and water are stored in the crop
-Proventriculus: The esophagus continues past the crop, connecting the crop to the proventriculus. The proventriculus (also known as the true stomach) is the glandular stomach where digestion primarily begins
-Small Intestine:The small intestine is made up of the duodenum (also referred to as the duodenal loop) and the lower small intestine. The remainder of the digestion occurs in the duodenum, and the released nutrients are absorbed mainly in the lower small intestine

6a)
1. Centro 2. Mucana 3. Stylo 4. Sun hemp
6b)
6c)
Debit:
Purchases and expenses (le)
Opening valuation- 15,000.00
Cost of agrochemicals- 3,800.00
Hiring of labour- 9,000.00
Transportation – 1,500.00
Cost of processing farm produce – 2,500.00
Miscellaneous – 2,000.00
Total- 33,800.00
Net profit- 40,200.00
Grand total – 74,000.00
Credit:
Sales and receipts (le)
Closing valuation – 15,000.00
Sales of crops – 57,700.00
Crops consumed – 1,300.00
Total – 74,000.00