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Agric OBJ:
1-10: acbbcabbaa     
11-20: acaadcabdc      
 21-30: abdbacaaaa       
31-40: abbbabccda       
41-50: bbdccdccac
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(2a)
(i)monocropping can defined as the system of planting one form of crops on a piece of land. E.g cassava platation, maize plantation.
(ii)mixed cropping can defined as the system  of planting two or more crops on a piece of land at a time e.g planting of maize and cassava.
(iii)mixed farming can be defined as the system of farming through which two or more farming  practices are being carried out. This is the farming of rearing of animals and also cultivating a piece of land for farming. Such farming are of immense benefits as the waste of such animals  serve as organic manure for the crops, while the crops left-over after harvest serve as source of feeds for farm animals.
(iv)shifting cultivation can be defined as the syetm of moving from one piece of land to another, this promotes the soil fertility as the soil regains its nutrients quickly. This act or process preserves the soil fertility within the soil. i.e the crops will be quite different from the one that will be planted in another year.
(v)crop rotation can be defined as the process of rotating crops being planted on a piece of land, in other to prevent fertility of the soil. By ensuring that the heavy crops are not planted continuously without allowing a light feeder crops being planted. Hence, heavy crops such as cassava are not continuously planted because much soil nutrients are being used up during the period of growth.
(2b)
-international Institute for tropical agriculture(IITA)
-International livestock centre for Africa(ILCA)
-food and agricultural organization(FAO)
-international fund for agricultural development(IFAD)
-international livestock research institute(ILRA)
(2c)
-leaching
-erosion
-burning
-lightening

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(4a)
Irrigation can be defined as the process of watering crops through the channels of rivers or by using watering can
(4b)
-to make early planting possible
-to ensure survival  of the crops during dry seasons.
-to reduce the effects of heat on crops
-to reduce the soil acidity
(4c)
-high value crops are grown
-does not pose any threat to machines
-cost of maintenance is low
-drainage is faster and more efficient
-availability of more land for the process
(4d)
(i)transportation can be defined as the process of transferring pre-plant crops in the nursery  to the farmland.Hence hand trowel is basically used for this process
(ii)supplying can be defined as the process of planting so many crops for the nursey stage of pre-planting process in other to make available crops for planting
(iii)thinning can be defined as the process of weeding out or removing unhealthy grown crops from the population of so many crowded grown up crops, in other to give room for the healthy growth.
(iv)seed rate: this is the process of measuring the potency of the crops with the viability germination of the seed.
(4e)
-regular medical chekup
-by giving them balanced ration
-regular cleaning up of their surrounding
-vaccination
-isolation of sick animals

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(5a)
-reduction of crops value for marketing
-losses in income to farmer
-competition with crops for space
-competition for sunlight
-competition with crops for nutrients
-habour crops pests and diseases
(5b)
(i)pathogen: these are the living organism which might be bacteria, virus, protozoans that attack or affect the hosts of a living organism.
(ii)pest:these are the living  organisms which are capable of causing damage to the crop plant>
(iii)parasite: these are the living organisms that lives on the living host of the plants by feeding directly from the already manufactured foods by the plants>
(iv)vector: this are the living organisms which are capable of carrying diseases and also harbour harmful diseases on their bodies.
(v)disease: this is the effect of attack on the living host, the attack might be caused by a bacteria, virus, protozoan etc.
(5c)
-Sokoto red
-Bornu red
-west African  dwarf goat
-Angora
-Kano brown
(5d)
-it serves as a source of income
-it serves as source of feeds
-its hides and skin are used in leather.

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(6a)
-to produce animals that are resistant to diseases
-to produce animals with early maturity
-to produce animals with high growth rate
-to produce animals with higher adaptability to environment
-to produce animals with higher productivity values
(6b)
-excretory system
-digestive system
-nervous system
-circulatory system
-respiratory system
-reproductive system
(6c)
-reddening of the vulva
-noise making
-secretion from the vagina
-restlessness among animals
-loss of apetitte
-frequent urination
(6d)
Oestrous cycle can be defined as the interval from the end of one heat period to the beginning of the other.




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