Railways General Science & Technology Diseases Sample Paper Human Diseases Sample Test Paper-32

  • question_answer
    Foot and Mouth disease in animals, a current epidemic in some parts of the world, is caused by a

    A)  Bacterium                    

    B)  Fungus

    C)  Protozoan        

    D)  Virus

    Correct Answer: D

    Solution :

    [d] To inhibit water loss or to conserve water most of the desert species have waxy leaves that keep them water proof when stomata are closed. Water is further conserved by reducing surface area so most succulents have few leaves or no leaves. Some desert plants have thorns instead of leaves. Thorns do not let the water go out.


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