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

Sulphuric acid is present in the acid rain and materials coming out of mines. You know that erosion of metals present in statues, bridges and buildings occurs due to it. - Science and Technology 2

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प्रश्न

Read the following paragraph and write the answers to the questions asked.

Sulphuric acid is present in the acid rain and materials coming out of mines. You know that erosion of metals present in statues, bridges and buildings occurs due to it. Sulphuric acid is a source of energy for some species of bacteria like Acidiphilium spp. and Acidithiobacillus ferrooxidans. Hence, these bacteria can control the soil pollution occurring due to acid rain. Water soluble salts of uranium are present in the wastes produced during electroplating and in effluent released in the environment from the atomic energy plant. Geobacter convert these salts of uranium into insoluble salts and thereby prevent those salts from mixing with groundwater sources.

  1. What causes metal erosion in statues, bridges and buildings?
  2. Sulphuric acid is the source of energy for which bacteria?
  3. What kind of pollution do these bacteria control?
  4. What are the water soluble salts in atomic energy plants and in the process of electroplating?
  5. Which bacteria prevent these salts from mixing with ground water by converting them Into insoluble salts?
थोडक्यात उत्तर

उत्तर

  1. Sulphuric acid present in acid rain and materials coming out of mines causes metal erosion in statues, bridges and buildings.
  2. Sulphuric acid is a source of energy for some species of bacteria like Acidiphilium spp. and Acidithiobacillus ferrooxidans.
  3. These bacteria control soil pollution occurring due to acid rain.
  4. Water soluble salts of uranium are present in the wastes produced during electroplating and in effluent released from atomic energy plant.
  5. Geobacter prevent these salts from mixing with ground water by converting them into insoluble salts.
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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 7

संबंधित प्रश्‍न

The following is an antibiotic.


Explain the uses of micro-organisms.


Nowadays, ___________ are used for treatment of diarrhoea and treatment of poultry also.


Find an odd one out.


Methane gas is produced by microbial oxidation of industrial waste.


Spinosad is a biopesticide.


Why does the process of dirt removal occur in detergents even at low temperature?


What is added to impart thickness to instant soup?


Give scientific reason.

Probiotics have got more importance in recent times.


Give scientific reason.

A biofuel is an important tool in renewable energy sources.


Give scientific reason.

The landfill pit is lined with plastic sheets.


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


Which fuels do we get from microbes?


What is the use of antibiotics to human and other animals?


Explain biofuel production with the help of diagram.


Nostoc is used for fixing nitrogen.


  1. Which process is shown in the above given picture?
  2. Give two examples for liquid fuels and solids fuels obtained by this process.

Find odd one out:


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

Complete the given paragraph by filling the blank spaces from the options given in the bracket:

[oxygen, pyridines, mechanical, CO2, petroleum, fatal, polyester, norcadia]

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


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