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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Write the answers to the questions by observing the figure. What type of fuel production process is shown in the figure? Write two examples of each of the solid, liquid - Science and Technology 2

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प्रश्न

Write the answers to the questions by observing the figure.

  1. What type of fuel production process is shown in the figure?
  2. Write two examples of each of the solid, liquid and gaseous fuels produced in this fuel production process?
  3. How do microorganisms play their role in this process?
थोडक्यात उत्तर
आकृती

उत्तर

  1. Biofuel is produced in the process shown in the figure.
  2. Solid fuels: Dung, crop residue
    Liquid fuels: Vegetable oils, alcohol
    Gaseous fuels: Gobar gas, coal gas
  3. For the production of biofuel, the residue left after the threshing of biomass contains cellulose, which is converted to glucose. This glucose is then converted to liquid fuel through microbial fermentation, which is used for different purposes.
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पाठ 7: Introduction to Microbiology - Solve the following questions

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एससीईआरटी महाराष्ट्र Science and Technology 2 [English] 10 Standard SSC
पाठ 7 Introduction to Microbiology
Solve the following questions | Q 8

संबंधित प्रश्‍न

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.


Why is it necessary to ban the use of plastic bags?


Complete the following conceptual picture related to environmental management.


Name the following method of solid waste management.


Explain the uses of micro-organisms.


Complete the paragraph using proper words:

(Mechanical, Rhizobium, Aquatic, Toxic, CO2, Nitrogen, Pseudomonas, Amoeba, Bacteria, Hydrocarbons)

Spilling of petroleum oil occurs in ocean due to various reasons. This oil may prove fatal and toxic to _______ organisms. It is not easy to remove the oil layer from surface of water by _______ method. However, bacteria like _______ spp. and Alcanivorax borkumensis have the ability to destroy the pyridines and other chemicals. Hence, these _______ are used to clear the oil spills, These are called as hydrocarbonoclastic bacteria (HCB). HCB decompose the _______ and bring about the reaction of carbon with oxygen. _______ and water is formed in this process.


Find an odd one out.


Lactic acid : To impart acidity : : Beta carotene : _____________________


Shelf life of yogurt can be increased by pasteurization.


Sulphuric acid is a source of energy for some species of bacteria like Acidophillium.


Give scientific reason.

Microbial enzymes are eco-friendly.


Write a short note.

Microbial Enzymes


Write a short note.

Bio-fuels


How is soil pollution controlled by microbes?


Explain – Importance of microbes in sewage (water) treatment in cities.


How are microbes useful in land filling for solid waste management?


Describe the role of microbes in agriculture and industries.


Nostoc is used for fixing nitrogen.


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

_______ is used as artificial sweetener.


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