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प्रश्न
Give reasons.
Soil is turned over during tilling.
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उत्तर
Soil is turned over during tilling to bring the nutrient-rich lower layers of soil to the surface and to loosen the soil so that air and water can easily reach the roots of plants.
संबंधित प्रश्न
Which fuels can be obtained by microbial processes? Why is it necessary to increase the use of such fuels?
Answer the following.
Which plants are cultivated to obtain the fuel?
Explain the uses of micro-organisms.
Which fungus is used to make soya sauce by fermentation?
Which microbes convert uranium to its insoluble salts?
Write a short note.
Microbial inoculants
Why should we use bioinsecticides?
Unscramble the jumbled word underlined in the following statement.
Curbossulite is an air-borne disease caused by a bacterium
Match the microorganisms given in the Column A to the group to which they belong in Column B.
| Column A | Column B |
| (a) Lactobacillus | (i) Algae |
| (b) Aspergillus | (ii) Protozoa |
| (c) Spirogyra | (iii) Fungi |
| (d) Paramecium | (iv) Bacteria |
What is retting?
