Q1. 'Compost' is ___.
Q2. 'Fertile' means ___.
Q3. 'Decompose' means to ___.
Q4. 'Humus' is ___.
Q5. Which is uncountable?
Q6. How ___ worms did you find?
Q7. How ___ water does the compost need?
Q8. There is ___ organic matter in this soil.
Q9. Which sentence is correct?
Q10. Green materials include ___.
Q11. The ideal green-to-brown ratio is ___.
Q12. Compost should be as moist as ___.
Q13. In Thailand's heat, compost is ready in about ___.
Q14. Healthy soil contains billions of ___.
Q15. More worms in soil means ___.
Q16. One teaspoon of healthy soil has more microorganisms than ___.
Q17. Mulch should be ___ cm thick.
Q18. Vermicomposting uses ___.
Q19. Rice husks from Thailand's rice industry make excellent ___.
Q20. Worm castings are considered ___.