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01
what is sustainable development
why it is the need of
the hour from environment

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By Camila

01
what is sustainable development
why it is the need of
the hour from environment

​

About the author
Camila

Exercise 1.4.3
1.
The ratio of cement and sand in mixture A is
1 : 4 and mixture B is 2 : 7. Find, what mixture

Find the square of:

[tex]i) \: 2a \: + \: b [/tex]
[tex]ii) \: 3a \: + \: 7b[/tex]


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1 thought on “01<br />what is sustainable development<br />why it is the need of<br />the hour from environment <br /><br />​”

  1. Answer:

    Sustainable development is a need of an hour because the resources are unevenly distributed and we all are becoming infact have become dependent on resources, we are consuming our resources without thinking about the future generation. A time might come when there will be no resources left to be used.

    Explanation:

    PLEASE mark me BRAINIEST or folo me

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