Advertisements
Advertisements
प्रश्न
How are microbes useful in land filling for solid waste management?
उत्तर
Role of microbes in land-filling for solid waste management:
- Microbes present in soil and other top layers decompose the waste.
- These microbes break down complex organic compounds into simpler inorganic substances and thus compost is formed after a few days.
- These microbes also feed on the organic matter and free important minerals and nutrients like nitrogen, carbon, phosphorus, etc., that can be used to improve the fertility of soil.
APPEARS IN
संबंधित प्रश्न
“Solving the problem of pollution is an effective way of environmental management” Justify the statement.
Which are the reasons for increasing the popularity of probiotic products?
Why is it necessary to ban the use of plastic bags?
Complete the following conceptual picture.
Answer the following.
How does the bread become spongy?
Rewrite the following statement using correct of the option and explain the completed statement.
Harmful bacteria in like -- -- -- in the intestine are destroyed due to probiotics.
Rewrite the following statement using correct of the option and explain the completed statement.
Chemically, vinegar is -- -- --.
Give reasons.
Soil is turned over during tilling.
_________ is used in the commercial bakery industry.
An enzyme obtained from fungi to produce vegetarian cheese.
Microbes used along with artificial nitrogenase in organic farming.
Lactobacillus : Yoghurt : : Baker’s yeast : _______________
Write a short note.
Probiotics
Observe the figure and write the answers to the questions asked.
- Write the name of the fungus in the figure above.
- What is the source of these fungi?
- Which organic acid obtained from this organism is used in commercial production?
Observe the figure and write the answers to the questions asked.
- Name the above figure.
- What is it used for?
- Which gas is formed in it?
- How is this gas formed?
- What is done with sewage?
Microorganism can be seen with the help of a _______.
Diptheria affects the ______.
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?
Complete the chart on production of beverages.
| S. No. | Fruit | Microbe used | Role of microbe used | Name of beverage |
| (a) | Caffea arabica | ______ | Separating seeds from fruit | Coffee |
| (b) | Theobroma cacao | Candida, Hansenula, Pichia, Saccharomyces | ______ | Cocoa |
