VERIFIED 2021 WAEC Completed Agricultural Science Questions & Answers
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WAEC Agricultural Questions and Answers 2021 Objectives Answers LOADING……
Agriculture-Obj:
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Completed Like When External Invigilator Seize Your Phone And You didn’t write Anything. Pls No Noise😂😂😂🤣🤣
(2ai)
TIME:
(i) It determines whether or not the soil is well developed
(ii) It takes shorter time in the formation of immature soil
(iii) It also takes a long time for plant to decay and become part of the soil
(2aii)
RAINFALL:
(i) It provides water for hydrolysis
(ii) It helps to break down some parent rocks to form soil
(iii) It enhances vegetative growth of plants whose roots cause further breakdown
(2aiii)
PARENT MATERIAL:
(i) They constitute major materials from which soil is formed
(ii) It determines the chemical composition of the soil formed
(iii) It’s hardness affects the rate of soil formation
(2b)
(i) Non-uniform of crops
(ii) Most exhaustive crops should be followed by less exhaustive e
(iii) Deep rooted crops should be succeeded by shallow rooted crops
(iv) Leguminous crops should be grown after non-leguminous crops
(2c)
(i) It serves as cover crops
(ii) It serves as food for livestock
(iii) It is used as green manure
(iv) It helps to prevent erosion
(v) It is used for roofing farmstead
(3a)
Selective exploration is the process of cutting or harvesting only matured trees in a forest. It is a way of concentrating certain selected species of timber in a forest reserve. The system allows for the harvesting of older trees while the younger ones remain as cover to the surface of the forest. It is the legal felling of trees based on certain criteria such as maturity and species.
(3b)
(i) It ensures the concentration of selected species of timber in a forest.
(ii) It protects the soil from erosion.
(iii) It ensures the continuous supply of timber.
(4ai)
PRUNING OF COCOA TREES:
(i) It optimizes the balance of vegetative and reproductive growth
(ii) It increases the efficacy of fertilization and pest control
(iii) It helps in prevention and treatment of disease.
(iv) It reduces risk of failure from dead or weak branches
(4aii)
PARBOILING OF PADDY RICE:
(i) To increase the total and head yield of the paddy
(ii) To prevent the loss of nutrients during milling
(iii) To salvage wet or damaged paddy
(iv) To prepare the rice according to the requirements of consumers
(4b)
(i) By use of chemicals such as herbicides
(ii) By weeding
(iii) By cultural practices
(iv) By use of good tillage operation
(vi) Use of resistance varieties
(4c)
(i) They are used to enhance the beauty of a garden or home.
(ii) They are grown for food. Some chilies are grown as ornamental plants. An example is capsicums.
(iii) Some ornamentals can be used for medicinal purposes.Example of ornamental herbs are rosemary, mexican marigold and lemon grass.
(iv) They absorb carbon dioxide from the air and output oxygen thereby creating cleaner air.
(v) Fallen leaves of ornamental plants makes good mulch and compost.
(5a)
TABULATE
=FEED A=
-Feed Conversion Ratio (FCR)-
(i) 6
=FEED B=
-Feed Conversion Ratio (FCR)-
(ii) 5
= FEED C=
-Feed Intake(g)-
(iii) 223.2
=FEED D=
-Weight Gain-
(iv) 51.2
=FEED E=
-Weight Gain-
(v) 26.3
=FEED F=
-Feed Intake-
(vi) 719.2
=FEED G=
-Weight Gain-
(vii) 58
=FEED H=
-Feed Conversion Ratio (FCR)-
(viii) 22.7
(5b)
(i) Feed H – 22.7
(ii) Feed B – 5
(5c)
(i) Meat
(ii) Skin
(iii) Bone
(iv) Fur
(v) Milk
(5d)
(i) Hydration
(ii) Hydrolysis
(iii) Oxidation
*BONUS*
👇🏻👇🏻👇🏻👇🏻👇🏻
*NUMBER 6*
6a(i)
(i) Individual method
(ii) Group method
(iii)Mass method
6a(ii)
Mass method
6a(iii)
(i) Farmers can put the new ideas to use by themselves.
(ii)It can reach out to a large poultry Farmer.
6a(iv)
(i) Farmers may find it difficult to ask questions on matters which they do not understand.
(ii)It is very expensive
(iii) They are only useful to educated farmers.
6(b)
(i) Transport problems
(ii) Administrative problem
(iii) Financial problems
(iv) Inadequate information
(v) Problem or marketing
6(c)
(i) Sokoto Red
(ii)Bornu Red
(iii) West African long legged goat
(iv)Bantu
(v)Alphine
Answers coming inform of pictures..
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