leave letter due to illness ( Nirmala English Medium Senior Secondary School Delhi Rajhara )
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leave letter due to illness ( Nirmala English Medium Senior Secondary School Delhi Rajhara )
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Explanation:
Long Answer Type Questions 25. When is a change said to have taken place in a material ? Explain with the help of an example. 26. What is meant by 'reversible changes' and 'irreversible changes' ? Explain with examples. 27. Explain how, a metal rim is fixed around the wooden wheel of a cart. What type of change/changes take place during this process ? 28. Explain why, the burning of paper is said to be an irreversible change whereas the boiling of water is known as a reversible change. 29. Is it possible that the same materials may undergo reversible and irreversible changes ? Give two examples in support of your answer. 30. Does the change in a material (or object) occur on its own ? Explain your answer with the help of an example
Explanation:
from
name
address
to
the class teacher
Nirmala English medium senior secondary school Delhi RajHara
respected Mam
sub- for taking leave
good morning mam. I am name ,of cls 10th as I am suffering from fever I am unable to attend the class for two days 15 July 2021 to 16 July 2021 kindly accept my letter as my apology.
thank you
yours sincerely
name
hope it helps you mark as brainliest