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प्रश्न
Answer the following.
Which fuels are obtained from biomass?
उत्तर
Fuels which are obtained from biomass are called biofuels and they are an important and renewable source of energy. Biofuels can be in the form of either solid, liquid or gases.
- Solid biofuels - coal, dung, crop residue
- Liquid - vegetable oils, alcohol
- Gaseous - gobar gas, coal gas
संबंधित प्रश्न
“Solving the problem of pollution is an effective way of environmental management” Justify the statement.
A) Lack of management of which factor is shown in the picture?
B) How can that factor be managed with the help of microbes?
C) How the oil spills in oceans are cleared?
If a piece of bread is kept in a container in moist place for 2 – 3 days,
1. What will you see?
2. Write scientific name and a character of the organism you may observe.
How can the soil polluted by acid rain be made fertile again?
Which are the reasons for increasing the popularity of probiotic products?
Why is it necessary to ban the use of plastic bags?
Name the following method of solid waste management.
Give reasons.
Soil is turned over during tilling.
Give reasons.
Fungus grows quickly in moist or humid conditions.
Vinegar means 4% ___________.
Match the following.
| Column A | Column B |
| 1) Baker’s yeast | a) Probiotics |
| 2) Sauerkraut | b) Bread |
| 3) Ligases | c) Antibiotics |
| 4) Penicillin | d) Microbial enzyme |
Why does the process of dirt removal occur in detergents even at low temperature?
Give scientific reason.
Bread and other products made using commercial yeast are nutritious.
What is the importance of probiotics to humans?
What are the benefits of microbial inoculation in plants?
What products do you get from microorganisms through the fermentation process? Explain with an example.
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?
Diptheria affects the ______.
- Which process is shown in the above given picture?
- Give two examples for liquid fuels and solids fuels obtained by this process.
