Higher the biodegradable organic matter in sewage

(1) Higher the dissolved oxygen

(2) Higher the BOD

(3) Lower the number of Bacteria

(4) All of these

Match each item in Column I with one item in Column II and chose your answer from the codes given below:
Column I                                                       Column II
I. Roots of leguminous plants                          1. Frankia
II. Azolla                                                       2. Mycorrhiza
III. Glomus                                                    3. Anabaena
IV. Alnus                                                        4. Rhizobium
Codes:
I II III IV
A. 1 2 3 4
B. 2 1 4 3
C. 2 1 3 4
D. 4 3 2 1

Match each item in Column I with one item in Column II and choose your answer from the codes given below:
Column I                                      Column II
I. Aspergillus niger                       1. Clot buster
II. Streptococcus                          2. Citric acid
III. Trichoderma                           3. Cyclosporin A
IV. Monascuspurpureus                 4. Statins
Codes:
I II III IV
A. 1 2 3 4
B. 2 1 4 3
C. 2 1 3 4
D. 1 2 4 3

Match each item in Column I with one item in Column II and chose your answer from the codes given below:
Column I                                 Column II
(GM microbe)                           (Application)
I. Rhizobium meliloti                 1. Prevention of frost damage
II. Pseudomonas                       2. Nitrogen fixation in fluorescence cereals
III. Pseudomonas putida            3. Scavenging of oil spills
IV. Trichoderma                         4. Biocontrol of fungal diseases
Codes:
      I   II   III   IV
A.   1   2    3     4
B.   2   1   4      3
C.   2   1   3      4
D.   1   2   4      3

In the given diagram, the gas X can be:

The virus shown here is a causative agent of:

Nitrogen fixation is carried out by:

Which one of the following impurities is easiest to remove from wastewater?

Match the following list of bioactive substances and their roles:
Bioactive Substances: -
(i) Statins (ii) Cyclosporin A (iii) Streptokinase (iv) Lipase

Role-
A. Removal of oil stains
B. Removal of clots from blood vessels
C. Lowering of blood cholesterol
D. Immuno-suppressive agent

Choose the correct match:

1. i B, ii C, iii A, iv D

2. i D, ii B, iii A, iv C

3. i B, ii A, iii D, iv C

4. i C, ii D, iii B, iv A

Match the items in Column ‘A’ and Column ‘B’ and choose correct answer:   

The correct answer is:

1. i B, ii D, iii C, iv A     

2. i C, ii D, iii B, iv A

3. i D, ii A, iii B, iv C         

4. i C, ii D, iii A, iv A