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Which substance is used to produce cheese? - Science and Technology 2

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प्रश्न

Which substance is used to produce cheese?

एक पंक्ति में उत्तर

उत्तर

Cow milk is used to produce cheese.

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2021-2022 (March) Set 1

संबंधित प्रश्न

The following is an antibiotic.


“Solving the problem of pollution is an effective way of environmental management” Justify the statement.


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.


Which fuels can be obtained by microbial processes? Why is it necessary to increase the use of such fuels?


Answer the following.

Which fuels are obtained from biomass?


a) What is clean technology ?
b) Why is it essential to ban plastic bags?


Saccharomyces cerevisiae : Ethanol : : Aspergillus oryzae : ________________


What is added to impart thickness to instant soup?


Which microbes convert uranium to its insoluble salts?


Give scientific reason.

Bread and other products made using commercial yeast are nutritious.


Complete the concept map.


What is the importance of probiotics to humans?


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?

Microorganism can be seen with the help of a _______.


How microorganisms are useful in the field of medicine?


Match the following

i. Amoeba a. Autotrophs
ii. Algae b. Gills
iii. Agaricus c. Biocontrol
iv. Bt cotton d. Sporulation

______ bacteria is used for industrial production of yogurt.


Give a scientific reason.

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


Complete the following chart:


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