Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test General Knowledge Ecology and Environment Ecology and Functions of an ecosystem
Which of the following are examples of Chemotrophs?
1. Nitrobacter
2. Nitrosomonas
3. Sulphur bacteria
4. Methanogens
Select the correct answer using the code given below.
1
1, 2 and 3 only
2
2, 3 and 4 only
3
1 and 4 only
4
More than one of the above
5
None of the above