9 – Biology : Topic: Improvement in food resources |
| A. Very short answer questions: |
| Q1. Define the following terms: |
| a) photoperiod b) green manure c) organic farming d) concentrates e) roughage |
| Q2. Mention one advantage and one disadvantage of green revolution. |
| Q3. What nutrients do we get from: cereals and pulses? |
| Q4. How many nutrients are required in lesser quantities and what are they commonly called? |
| Q5. Why even excess application of manure does not cause pollution? |
| Q6. Give one disadvantage of fertilizer. |
| Q7. Name one crop which can tolerate water logging in field and one which cannot? |
| Q8. What happens when a matured wheat crop is irrigated? |
| Q9. A farmer grows gram crop between two cereal crops. What agricultural practice is being followed? |
| Q10. Give one word: |
| 1) A toxic substance effective against insects. 2) A fungal disease of wheat crop 3) A common weed 4) A weedicide 5) One natural insecticide |
| Q11. Name one HYV of cow and one of buffalo. |
| Q12. Name two exotic varieties of cow. |
| Q13. What are the indications for diseased cattle? |
| Q14. Why special care of broiler is taken? |
| Q15.
During heavy rains in a village, the rain water carried excess of
nitrogen into the river. What can be the consequence of this process.? |
| Q16. Name two indigenous breeds of poultry. |
| Q17. Define inland fishery. |
| Q18. How is pisciculture different from apiculture? |
| Q19. Name two fresh water fishes. |
| Q20.What two products do we obtain from honey bees? |
| B. Short answer questions: |
| Q1. How are HYV of poultry advantageous over local breeds? |
| Q2. What is pasturage and how is it related to honey production? |
| Q3. How will you distinguish between capture fishery, inland fishery and aquaculture? |
| Q4. Name the Italian bee variety used for honey production and mention two reasons for why its preferred over other varieties? |
| Q5. Define composite fish culture and mention its advantage. |
| Q6. How are broilers and layers different from each other? |
| Q7. Mention four main features of a good cattle shelter. |
| Q8. Pick the odd one out and give reason: |
| a) Gir ,sahiwal, red sindhi, jersey b) Aseel, basra, chattisgarh, white leghorn. |
| Q9. Suppose you are incharge of a grain store. Mention two indications to find out the presence of pests in the godown. |
| Q10. Give reason: |
| a) legumes are desirable during crop rotation b) Excessive irrigation of crops should be avoided. |
| Q11. Classify the various plant nutrients according to their sources. |
| Q12. Crop variety improvement is a must. Justify by giving three reasons. |
| Q13.How is a compost different fron vermicompost? |
| Q14. Pick the odd one out wiyh reason: |
| a) mullets, pearl spots, oyster, bhetki |
| b) sardine, rohu, Bombay duck, tuna |
| Q15. Name the surface , middle zone and bottom feeders in composite fish culture. |
| C. Long answer questions: |
| Q1. Green revolution is like two faces of a coin . Explain in detail. |
| Q2. Write a note on prevention of animal diseases. |
| Q3.Mention the various preventive measures to be taken in account during grain storage. |
| Q4. Biological control methods should be preferred for protecting crops. Why? |
| Q5. Compare mixed and intercropping . also mention their advantages |
