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Question
ওজোন স্তর ধ্বংসের জন্য দায়ী প্রধান উপাদান হচ্ছে-
C
O
2
C
O
C
F
C
N
O
2
ANSWER : 3
Descrption
<p><strong>ওজোন স্তর ক্ষয়কারী পদার্থ :</strong> ওজোন স্তর ক্ষয়কারী পদার্থের মধ্যে CFC হলো প্রধান । CFC ছাড়া <math class="wrs_chemistry" xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">N</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi></math>, NO, <math class="wrs_chemistry" xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>CH</mi><mn>4</mn></msub></math>, হ্যালোনসমূহ, BCF, <math class="wrs_chemistry" xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>CH</mi><mn>3</mn></msub><mi>Br</mi></math> ও <math class="wrs_chemistry" xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>CCl</mi><mn>4</mn></msub></math> ওজোন স্তর ধ্বংস করে থাকে ।</p>
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