Agriculture Questions and Answers - Grade 7 End Term 1 Exams 2023 Set 2

INSTRUCTION TO CANDIDATE

• Read each question carefully
• Answer ALL questions

1. Discuss the methods through which splash and sheet erosion can be controlled? (2mks)
2. State three ways through which plants protect land against soil erosion? (3mks)
3. State three farming practices that enhance the conservation of water in the soil? (3mks)
4. Name two types of seedbeds that help in conserving moisture in the soil. (2mks)
5. State three methods that can be used in reducing damages caused by wild animals. (3mks)
6. Explain how deflectors prevent rodents from entering a grain store. (2mks)
7. Outline the importance of a creeping crop to the soil where it is, growng from. (2mks)
8. Discuss three steps needed when preparing the cucumber seeds for planting (3mks)
9. Identify three ways through which a farmer can control weeds. (3mks)
10. Identify the domestic animal in the picture. (1mk)
     _____________________________
    Name any other two domestic animals kept in your locality (2mks)
11. Write two importance of domestic animals in your community (2mks)
12. What is vegetable gardening? (2mks)
13. Name three types of leguminous plants in your locality. (3mks)
14. Discuss three importance of ornamental plante (3mke)
15. State two reasons why we support young climbing fruits plants? (2mks)
16. Name two indeginous vegetable crops found locally. (2mks)
17. State three materials that can cause soil pollution (3mks)
18. State three ways of conserving surface runoff water. (3mks)
19. List 2 examples of minimum tillage practices. (2mks)
20. State 2 importance of agro-forestry. (2mks)

MARKING SCHEME

1. Cover cropping - reduces the impact of rain drops and speed of water
2.  
   1. The roots of plants hold soil particles firmly preventing them from being carried
   2. The leaves of plants traps raindrops reducing impact on the ground.
   3. Plants growing on slopes slows down water.
3.  
   1. Mulching
   2. Minimum tillage
   3. Cover cropping
   4. Agroforestry
   5. Shallow pits
   6. Sunken beds
4.  
   1. Shallow pits
   2. Sunken beds/sunken seedbeds
5.  
   1. Use of barriers e.g wire mesh and thorn fence
   2. Use of deflectors
   3. Use of tapes
   4. Use of scare crow
   5. Use of dogs and cats
   6. Use of safe traps
6. Deflectors are smooth and shiny. When light shines on them they reflect it. The reflected light scares rodents away.
7.  
   1. They cover the soil by spreading on the ground thus conserve moisture.
   2. They help to control splash erosion by trapping
   3. Incase they dry up, they rot adding humus into the soil (any other)
8.  
   1. Cut a mature cucumber fruit open and extract seeds
   2. Separate seeds from pulp and wash them using cold water
   3. Sort the seeds to get large, healthy -seeds
   4. Dry the selected seeds under a shade.
9.  
   1. Weeding
   2. Mulching
   3. Slashing
   4. Use herbicides
   5.  uprooing
10.  
    1. rabbit
    2.  
       1. cats
       2. Dogs
       3. Fish
       4. bees
       5. Poultry etc
11.  
    1. Some provide meat
    2. Can be sold to get money
    3. Dogs provide security and hunting
    4. some provide milk (any other)
12. Growing of vegetables such as kales
13.  
    1. Beans
    2. Peas
    3.  Peanust
    4. Beans
    5. Lentils
14.  
    1. Add beauty at home
    2. Edible ones provide food
    3. Flowers sold give us money
    4. Act as windbreaks
15.  
    1. To grow upwards for sunlight
    2. To grow into a desired shape
    3.  To prevent damage of fruits once mature
16.  
    1. pigweed
    2. black night shade
    3. pumpkin
    4. Spider weed
17.  
    1. Excess artificial fertilisers
    2. Excess agricultural chemicals
    3. Plastic containers/waste
    4. Chemical containers
18.  
    1. Water retention ditches
    2. Water retention pits
    3. Earth basins
19.  
    1. Slashing weeds
    2. Mulching
    3. Uprroting weeds
    4. Use of herbicides
    5. Restricted cultivation
20.  
    1. Prevent soil erosion
    2. Improves water conservation in the soil
    3. Reduces water runoff
    4. Acts as wind breakrs
    5. Provides shade to people and animals