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বাংলা
The coldest layer of the atmosphere is:
বায়ুমণ্ডলের সবচেয়ে শীতল স্তর কোনটি?
Practice MCQ for SSC, UPSC, RRB Exams
A. Troposphere
A. ট্রোপোস্ফিয়ার
B. Stratosphere
B. স্ট্র্যাটোস্ফিয়ার
C. Mesosphere
C. মেসোস্ফিয়ার
D. Thermosphere
D. থার্মোস্ফিয়ার
Correct Answer: C
সঠিক উত্তর: C
Explanation
ব্যাখ্যা
The
mesosphere
is located above the stratosphere and below the thermosphere.
This layer extends roughly from
50 km to 85 km
above the Earth’s surface.
In the mesosphere,
temperature decreases rapidly with increasing altitude
.
It is the
coldest layer of the atmosphere
, with temperatures dropping to about
-90°C
.
The
troposphere
is warmer because it receives heat from Earth’s surface.
The
stratosphere
becomes warmer with height due to ozone absorption.
The
thermosphere
has extremely high temperatures due to absorption of solar radiation.
মেসোস্ফিয়ার
স্তরটি স্ট্র্যাটোস্ফিয়ারের উপরে এবং থার্মোস্ফিয়ারের নিচে অবস্থিত।
এই স্তরটি পৃথিবীর পৃষ্ঠ থেকে প্রায়
৫০ কিমি থেকে ৮৫ কিমি
পর্যন্ত বিস্তৃত।
এই স্তরে
উচ্চতার সাথে তাপমাত্রা দ্রুত হ্রাস পায়
।
এটি বায়ুমণ্ডলের
সবচেয়ে শীতল স্তর
, যেখানে তাপমাত্রা প্রায়
-৯০° সেলসিয়াস
পর্যন্ত নেমে যায়।
ট্রোপোস্ফিয়ার
তুলনামূলকভাবে উষ্ণ, কারণ এটি পৃথিবীর পৃষ্ঠ থেকে তাপ গ্রহণ করে।
স্ট্র্যাটোস্ফিয়ার
স্তরে ওজোনের কারণে উচ্চতার সাথে তাপমাত্রা বৃদ্ধি পায়।
থার্মোস্ফিয়ার
স্তরে সূর্যরশ্মি শোষণের ফলে তাপমাত্রা অত্যন্ত বেশি থাকে।
Related Questions
সম্পর্কিত প্রশ্ন
Which layer of the atmosphere contains the ozone layer?
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?
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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