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Q9.     Transmission of yellow vein mosaic of bhindi pathogens is by -
                       (a) Water
                       (b) Air
                       (c) Insects
                       (d) Seeds

               Q10.  Identify the mode of transmission in citrus canker plant disease.
                       (a) Water
                       (b) Air
                       (c) Insects
                       (d) Seeds







               SUBJECTIVE


                      Questions                                                               Marks  Level

               Q1.  Name one disease caused by microorganisms in animals.                     1       E

               Q2.  Name one plant disease which is caused by bacteria.                       1       E


               Q3.  How are the plant diseases caused by microorganisms controlled?  1                Av


               Q4.  What is anthrax disease?                                                  1       Av

               Q5.  Explain the term food poisoning and its effects on our health.            3       D

               Q6.  Name the mode of transmission of the following plant diseases -           3       D
                      (a) Citrus cankar
                      (b) Rust of wheat
                      (c) Yellow vein mosaic of okra
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