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Which layer of the atmosphere contains the ozone layer?
বায়ুমণ্ডলের কোন স্তরে ওজোন স্তর অবস্থিত?
Practice MCQ for SSC, UPSC, RRB Exams
A. Troposphere
A. ট্রপোস্ফিয়ার
B. Stratosphere
B. স্ট্রাটোস্ফিয়ার
C. Mesosphere
C. মেসোস্ফিয়ার
D. Thermosphere
D. থার্মোস্ফিয়ার
Correct Answer: B
সঠিক উত্তর: B
Explanation
ব্যাখ্যা
The
stratosphere
is a layer of the Earth's atmosphere that lies
above the troposphere
and
below the mesosphere
.
The
ozone layer
is mainly found in the
lower part of the stratosphere
.
This ozone-rich region is located at an altitude of about
15–40 kilometers (10–25 miles)
above the Earth's surface.
The ozone layer is
extremely important
because it
absorbs and scatters harmful ultraviolet (UV) radiation
from the Sun.
It especially blocks
UV-B radiation
, which is dangerous to living organisms.
Without the ozone layer, increased UV radiation could cause
skin cancer, eye cataracts
, and
damage to crops and marine life
.
স্ট্রাটোস্ফিয়ার
হলো পৃথিবীর বায়ুমণ্ডলের একটি স্তর, যা
ট্রপোস্ফিয়ারের উপরে
এবং
মেসোস্ফিয়ারের নিচে
অবস্থিত।
ওজোন স্তর
প্রধানত
স্ট্রাটোস্ফিয়ারের নিচের অংশে
পাওয়া যায়।
এই ওজোনসমৃদ্ধ অঞ্চলটি পৃথিবীর পৃষ্ঠ থেকে প্রায়
১৫–৪০ কিলোমিটার (১০–২৫ মাইল)
উচ্চতায় অবস্থিত।
ওজোন স্তরটি
অত্যন্ত গুরুত্বপূর্ণ
, কারণ এটি সূর্যের
ক্ষতিকর অতিবেগুনি (UV) রশ্মি
শোষণ ও বিচ্ছুরণ করে।
বিশেষ করে এটি
UV-B রশ্মি
প্রতিরোধ করে, যা জীবের জন্য ক্ষতিকর।
ওজোন স্তর না থাকলে
ত্বকের ক্যান্সার, চোখের ছানি
এবং
ফসল ও সামুদ্রিক জীবের ক্ষতি
হওয়ার ঝুঁকি বেড়ে যেত।
Related Questions
সম্পর্কিত প্রশ্ন
The boundary between the troposphere and stratosphere is called:
Which gas is most abundant in Earth’s atmosphere?
Which atmospheric layer is responsible for Northern Lights (Aurora)?
Jet aeroplanes fly in which layer of the atmosphere?
Which of the following layers contains almost all weather phenomena?
Jet streams blow in which layer of atmosphere?
What is the rate of temperature fall per km with an increase in height in the troposphere?
Which layer experiences temperature increase with altitude due to ozone absorption?
The coldest layer of the atmosphere is:
Which layer is directly exposed to solar radiation and has the highest temperatures?
The ionosphere is important for:
Which atmospheric gas is responsible for the greenhouse effect?
Atmospheric pressure decreases with increasing altitude because:
Which atmospheric layer has the lowest density and gradually fades into outer space?
Besides nitrogen and oxygen, which noble gas is the next most abundant in the atmosphere?
In which layer do most meteors burn up upon entering Earth's atmosphere?
The Earth’s atmosphere originated mainly from:
Oxygen appeared in the atmosphere mainly due to:
The exosphere extends up to approximately:
Which layer of atmosphere has the highest density?
Which phenomenon keeps Earth’s temperature suitable for life?
The exosphere mainly contains:
The upper limit of the troposphere at the equator is around:
The ozone layer is generally located between:
Which one of the following boundaries separates the stratosphere and mesosphere?
The mesosphere extends roughly between:
Which layer is also called the Ionosphere?
The thermosphere extends from about:
Exosphere particles can escape Earth’s gravity because:
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