Why is yeast added to the mixture made for making bread ?
Why can we not use fire crackers as fuel ?
Mother is trying to make curd at home . Will it be more difficult to make it in summer or winter? Why?
Why are plastics preferred for making toasters , electric kettles and hair dryers?
Please give me a little lengthy answer and the first and third answer should be lengthy .
please answer this if you know
the person who answers all the questions will be marked as the brainliest .
Answers
hey mate this question is too long
Answer:
1. Baker's yeast is the common name for the strains of yeast commonly used in baking bread and bakery products, serving as a leavening agent which causes the bread to rise (expand and become lighter and softer) by converting the fermentable sugars present in the dough into carbon dioxide and ethanol.
2. Some eight residents of India’s capital are thought to die each day because of the city’s notoriously polluted air. Though authorities have been trying to clean it up by cutting traffic and the use of coal in power plants, the problem hasn’t really gone away. The newest culprit seems to be what has become coal’s replacement: an even dirtier fuel called petroleum coke.
3. Curd is made out of lactic acid. In winter temp is on lower side bacterial activity is slowed down which creates difficulty in curd formation. Best temp for curd formation is 37 - 42 degree centigrade.
4. Plastics are especially suited to housings for goods such as hairdryers, electric razors and food mixers as they protect the consumer from the risk of electric shock. ... To reduce the risk of burns, manufacturers have therefore made extensive use of plastics, introducing cool-touch toasters, deep-fat fryers and kettles.
hope it helps.....
thank u