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Reasons for cooling foods before storing in a refrigerator are:Warm temperatures overworks the refrigeratorTo avoid raising the temperature thus using more power for cooling the foodTo avoid multiplication of bacteria and microorganisms which is brought about by warm temperatures.
Reasons for using floor coverings in a house are;For decoration if they blend well with the colour scheme of the room where used hide/conceal ugly marks.As a protection for the floor from heavy objectsTo reduce noiseProvide warmth in the roomMakes the floor less slipperyFor ease in cleaning
Reasons for doing Agriculture as a discipline are;Provide skills in Agriculture and practicesIt is a career subjectCreate self-employment and self-reliance in foodAgriculture promote environmental conservationAgriculture promote cohesion in diverse cultureAgriculture promote school to take part in Agricultural practices e.g. young farmers
Reasons for having caster angle in steering geometry are;To maintain directional stability and controlTo reduce steering effortTo increase steering return abilityReduce tyre wear