1. Analyse the question to answer:
 
A few gram seeds were placed in each of the three pots A, B and C containing soil. The soil in pot A is mixed with some green twigs and leaves. The soil in pot B is mixed with old cow dung, while soil of pot C is mixed with urea. Pots are watered regularly. Which of the following will be observed after ten days?

(A) Very good growth in A
(B) Not much growth in B
(C) Good growth in B, but a little growth in C
(D) Very little growth in A, but good growth in B and C
 
Answer:
 
2. Match the following:
 
Column A Column B
a) Nitrogen fixation  
b) Sowing of seeds