The reproductive system

May 20th, 2015
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The reproductive system is the structural and physiological network whose purpose is the creation of a new life to continue the species. It is the only body system which is not concerned with supporting the life of its host.

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5c | Mohd Ikhmal Azman | 09509CONTENTSNo.IssuePage1.Human activities, effect & type of pollutionsLand pollutionAir pollutionWater pollutionThermal pollutionNoise pollutionOzone depletionGreenhouse effect3379121314162.Law and enforcement in Malaysia18Effects of Human ActivitiesSoil ErosionSoil erosion is the thinning of the soil layer due to the removal of the surface soil by:Wind Water flowUncontrolled human activitiesFlash FloodFlash flood is a sudden and rapid flood of low lying areas, rivers, and stream.Flash flood occurs when rain water that is not absorbed into ground fast enough causes surface runoff.The surface runoff accumulates and flows rapidly downhill, flooding everything in its path.The causes of flash flood:Poor drainage systemRubbish clogging the drainage systemSedimentation of rivers due to deforestationLandslides A landslide is a sudden fall of rocks and earth down a hill slope.Caused by:Mining activitiesHeavy rains on a denuded hill slopesUnstable construction projects on hill slopes earthquakes.Landslides may cause:A loss of lives and propertyDisruptions to the road transport system.Step to reduce or avoid landslides:Trimming and reducing hill gradient.Constructing retention walls on hill slopesConstructing proper drainage systemDeforestation Deforestation is the permanent removal of trees from forest.The purpose of deforestation:Commercial loggingShifting

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