Common on the following :--a) denitrifying bacteria are a blessing as well as a curse to farmers. b) yeast is used in bakeries and breweries
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A) Denitrifying bacteria are microorganisms that are a blessing for farmers as these prevent the plants from taking up excess nitrogen thereby protecting the plants. Denitrifying bacteria are a curse as they convert the nitrates to free hydrogen thereby reducing the fertility of soil.
B) Yeast is used in bakeries for making bread soft. Yeast is the agent that is added to bread dough to make the bread rise. In breweries, yeast is used for making homemade wines and beers by the process of fermentation.
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