Match the following columns:
Column I (OM) | Column II (N Content %) |
a. Compost | 1. 0.50 |
b. FYM | 2. 0.89 |
c. Night soil | 3. 5.50 |
d. Bird guano | 4. 7 - 8 |
A. a-1, b-2, c-3, d-4
B. a-3, b-4, c-1, d-2
C. a-2, b-1, c-3, d-4
D. a-4, b-3, c-2, d-1
Answer: Option C
Solution(By Examveda Team)
The compost contains 0.89% of nitrogen.FYM is farmyard manure and its nitrogen content is 0.50%.
Night soil is nothing but human excreta which is used as fertilizer and it contains 5.5% of nitrogen approximately.
Bird Guano is the accumulated excrement of seabirds and bats, and is a highly effective fertilizer, it contains 7% - 8% of Nitrogen.
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Which photosynthetic bacteria possess both PS I and PS II?
A. Purple sulphur bacteria
B. Cyanobacteria
C. Purple nonsulphur bacteria
D. Green sulphur bacteria
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