%100 VERIFIED 2016 WAEC GCE AGRICULTURAL SCIENCE PRACTICAL ANSWER

• Item 1 Thursday, 22nd September, 2016 Agricultural Science (Alternative t Practical Work) 9.30am -11.00am +++++++++++++++++++++++++++++++

  1) 1a) Solar power (Sun) 1ai) To determine d presence of micro Organism in a soil 1aii) Lime water in flask. I will turned milky and lime water in flas II will remain clear 1aiii) Shows that there are presence of micro-organism in d soil sample in flask I and there is respiration which turn lime water milky

  1bi) i)Vegetative propagation 1bii) i)cocoa ii)Kola iii)coffee 1biii) i)pollination agent which can be fail to perform successfully are not required ii)the hazards of fertilizatiom are avoided iii)the new plants mature fast because the offspring tend to acquires the age of the parent iv)the offspring are true to types because there is no mixture of hereditary characters.

  1c) -advantage- i)It increases photosynthesis activities -disadvantages- i)leads to high evaporation content in plant ==================================

  2a) Solar Power

  2b) i)for drying fishes ii)to produce electricity iii)heating farm steads

  2c) -Advantages- i)It is easily available ii)It is a very neat source of power iii)it is very useful in farm photosynthesis -Disadvantages- i)it is expensive to store and harness ii)The energy from the sun can be erratic.its wapbaze.com not possible to control it iii)only available during the day

  2d I)Electrical power II)Solar power III)Mechanical power Iv)Human power V)Water power ==================================

  3a) I-comb II-wattle

  3bi) i)Intensive system 3bii) i)there is considerable reduction in labour ii)allow hen to stand and sit 3biii) i)Ensure hen is confined which permit limited movement. ii)allowing hen to stand comfortably 3biv) i)ensure hen stand and sit comfortably ii)ensure tightening of the cage iii)ensure confined of the cage iv)ensure permit of limited movement

  3c) i)fowl cholera ii)pollurium iii)cocidiosis diseases ==================================

  4ai) A:Green manure composting B:Farmyard manure composting 4aii) Fermentation 4aiii) -It requires moisture for activities of microbes to take place 4aiv) Sun

  4bi) -To introduce microbes 4bii) -To produce organic matter for composting 4biii) -To provide moisture for microbial activities

  4c -To increase random/general microbial activities -To improve uniform mixture of water and animal dung -To ensure proper/maximum microbial activities

  4di) Mixer 4dii) For mixing compost component

  4e) To avoid activities of other microbes that can cause damage to the crops

• Item 2