Question

Which of the following increase the fertility of the soil?
A. Lactobacillus bacteria
B. Rhizobium bacteria
C. Spirogyra algae
D. Blue green algae

Select one:

a. A and B

b. B and C

c. A and D

d. B and D​

Answer 1

Answer:

B and D

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Answer 2

Answer:

option.C

lactobacillus bacteria and blue green algae