MCQ
What do you mean by "Blue Revolution"
- AConstruction of dams for water conservation
- ✓Fish cultivation on large scale
- CSewage treatment
- DControl of algal bloom
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| | Column A | | Column B |
| i. | Lady bird | a. | Methano bacterium |
| ii. | Mycorrhiza | b. | Trichoderma |
| iii. | Biological control | c. | Aphids |
| iv. | Biogas | d. | Glomus |