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5. Damage to Ecosystems:


                                                    Malnutrition and Famine



     OBJECTIVES
     > To recall that malnutrition is a condition resulting from a defective diet where certain important food
     nutrients (such as proteins, vitamins, or carbohydrates) may be absent
     > To remember that malnutrition can lead to deficiency diseases
     > To understand some of the reasons why famines occur including over-use of land for agriculture.



    A high global death rate linked to malnutrition has arisen from famine situations caused by a number of
    natural problems as well as by socio-political factors, such as alcohol and drug abuse, poverty, and war.
    As well as suffering from a deficiency disease, a malnourished person is usually more at risk from other
    diseases  (as  the  immune  system  may  be  very  much  reduced  in  efficiency)  and  a  society  with  many
    malnourished individuals experiences mounting problems:
        Adults become ill and cannot work, so little money is available to buy food.
        Children  become  ill,  and  so  adults  must  attempt  to  care  for  them  (often  going  without  food
        themselves).
        Older, weaker people will die and the society is deprived of their experience and knowledge.






















































          13         Learning Module Organisms and Their Environment | Class 11
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