1a) Experiment to compare the porosity and water holding capacity 1b) Grind loam and clay soil into fine particles, after drying in the sun. Equal masses of the dry, dry clay and dry loam are place seperately into three funnels which are blocked at the neck with cotton wool. The three funnels containing different types of soil are then placed on top of the three measuring cylinders. Then quickly pour equal amount of water into the funnels, containing each soil type. Then leave for an hour 1c) i)Loamy ii)Sandy iii)Clay 1d) i)I will ensure th three funnels containing different types of soil are placed on top of the three measuring cylinders ii)I will ensure equal amount of water is quickly poured into the funnels containing th soil type 1e) -sandy soil Because the porosity is high in sandy soil because of large pores spaces and larger particles sizes ================================= 3ai) G is a grasshopper H is a bean beetle 3aii. Vegetables are damaged by G Grasshoppers and beans are damaged by H bean beetle 3aii)specimen G i)Blossoms, Stems 3aiii)Agricultural importance of sp-H i. It reduces the market value of crops. ii. It lead to loss in viability. iii. It reduces the quality of bean. iv. It reduces the quantity of the crops. v. It destroy the beab embryo. vi. It reduces nutritional value.2a) Specimen A_ Ranging pole. SP A- RANGING POLE Reason. (i) it is made of wood with pointed steel ends. (ii)it is painted white and red. (iii)it is about 2m long. Uses. (I) it is used to remark distance . (ii)it is used to mark definite points. (iii)it is used to achieve straight lines. (iv)it can also help to determine right angles during surveying. 3d) Specimen I Control of sp-I I. The use of bird scaring materials in form of statue to scare them away. ii. The use of traps. ii)Use Of Pesticides to kill them. iv) 3dii) Specimen J i)Use of pesticides. ii)Blocking of holes or leakages they used in entering farm lands. iii)Setting traps to catch them. (4a) N: -Animal feed industry -ceramic Industry -pharmaceutical industry O: -paint industries -pharmaceutical industries -cosmetic industries (4b) -it causes loss of weight -it causes loss of appetite -it causes anaemia -it damages some internal organs -it prevent respiration (4c) -by dipping the animal -by drenching -by clearing bushes around -by giving the animal injection
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