Q1. Fill in the blanks.
i. The same kind of plants grown and cultivated on a large scale at a place is called ________.
ii. The first step before growing crops is _______________of the soil.
iii. Damaged seeds would ________ on top of water.
iv. For growing a crop, sufficient sunlight and _________and _______from the soil are essential.
v. The removal of weeds is called ___________.
vi. Weeds are also controlled by using certain chemicals, called _______________.
i. ‘Combine’ is in fact a combined harvester and thresher. ______
ii. A seed drill is also used to uproot weeds. ________
iii. We get our food only from plants. _________
iv. Pumps are commonly used for lifting water. _________
v. The fresh crop has less moisture. __________
vi. Dried neem leaves are used for storing food grains at home. ________
Q3. Give few examples of weedicides.
Q4. Name the bacteria which fix atmospheric nitrogen.
Q5. What is called weeding?
Q6. Name the tool used for tilling of soil.
Q7. How are crumbs broken?
Q8. Write 2 natural methods of replenishing the soil with nutrients.
Q9. How is levelling of soil done?
Q10. What are the two ways of sowing the seeds?
Q11. How is ploughing done nowadays?
Q12. What is sowing?
Q13. Name two categories of crops based on season.
Q14. What is threshing?
Q15. How are grains stored at home?
Q16. What are called crumbs?
Q17. Why is it important to level the field after ploughing?
Q18. What are good quality seeds?
Q19. Give some examples of Rabi crop?
Q20. What is harvesting?
Q21. Name the two modern methods of irrigation that help us to use water economically.
Q22. Why can paddy not be grown in the winter season?