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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
Give scientific reasons.
Enzymes obtained by microbial process are mixed with detergents.
There is a oil layer on the water surface of river in your area. What will you do ?
Nowadays, ___________ are used for treatment of diarrhoea and treatment of poultry also.
Microbes used along with artificial nitrogenase in organic farming.
Give scientific reason.
Microbial enzymes are eco-friendly.
Complete the concept map.
Why should we use bioinsecticides?
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 |
Which substance is used to produce cheese?
______ bacteria is used for industrial production of yogurt.
