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वायुमंडल (Atmosphere) for SSC & RAILWAY

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📘 सिद्धांत (Theory)

🌫️ वायुमंडल क्या है?

पृथ्वी के चारों ओर गैसों की परत को वायुमंडल (Atmosphere) कहते हैं।

It protects life and regulates temperature on Earth.

🌬️ वायुमंडल की संरचना (Composition)

  • Nitrogen (78%)
  • Oxygen (21%)
  • Argon (0.93%)
  • Carbon Dioxide (~0.03%)

👉 Oxygen → जीवन के लिए आवश्यक

👉 CO₂ → प्रकाश संश्लेषण (Photosynthesis)

🌌 वायुमंडल की परतें (Layers of Atmosphere)

1️⃣ क्षोभमंडल (Troposphere)


Image Source : Byjus


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https://images.openai.com/static-rsc-4/i5LNlS64uPqAAIZSywAgah2qZkIg1YelRaDFxCVA4W35zHlx-0gAAIDVV5FAGNfOo5dwuQH-fiJQczkbnB_ykYPBO4Ea8zUeWVKd6SsdqYKvqeA6DcZ598FUMirEt3AiVx0XLqnciphQ2itNmEEzSpxDyGC1Ac7QUAV7LL31vQzh5Ai5l7-0wfDoUi20lr33?purpose=fullsize

https://images.openai.com/static-rsc-4/K6KV8PL3E4V7vBypcYspA14TmsFB61E-FHChog9_Pcq0356XIDUe6E8TcxDefFwTJm2qY-MHcGiSlbic9qV4anKlim3EnSOENIC-_PRITcbKrlo4FoE1M2rxphLgZFZnPTQIZH1KzuwPI2rfFoBD25hYAWRjLkRCgdKZtMZi2u6kAq9fCa9nh-IsgPbV9xhz?purpose=fullsize

6

  • सबसे निचली परत (0–8 km poles, 0–18 km equator)
  • Weather changes यहीं होते हैं
  • Clouds, rain, storms occur here

2️⃣ समतापमंडल (Stratosphere)

https://images.openai.com/static-rsc-4/0Kfy9U80Nc7oBiuzF5Kmqvw-vC1IA1e-A_qh-ijOc81EgnQZgLTBsTY38KSeH_a-dAS3FmG5tDY2nR1hquOCfojeLNhhRoiAMpUt2LtDcUJbq4iuCPziBD5xNe8am7TtiZAgcm2nMJe2EVC4z6DMJm7HRvQfXtobTN7YQfrwSF_7QTS7qMtPNHXScxelekIf?purpose=fullsize

https://images.openai.com/static-rsc-4/meix-e5tfm84jEAoikC5igaLzugV_SnLA7EDgAnnJvGomi0_o5lDUNii-I9flVBMl6EhVHQEclM5NEuApua5JwUrAR1orFwe04P4SN6XmjA5TMETAzVBT6lTc0EBxG6-1xVGCUW2E3V_AmRrbzHk5Jd_Ek6vWebi73LxA3B8y2rEEph-pRPnCptbgPXh868k?purpose=fullsize

https://images.openai.com/static-rsc-4/QyP7sgwq0-HovmiqZvgzpRy1osn64LLqTa4BmRnjewi3YVPvRuriLCn7EB0NrJV5kMGLvYal5uZd5wKyBIxMPt7Cb4LlFweAnaf72XW0kbXtmp8uHkrdZg9AJuL7PN06nz9d405KR7KgQAFVPljXp6nXsErOftl5o2PILkR5--gCjfMOWJgPd2UOMDl3bI2S?purpose=fullsize

5

  • 18–50 km
  • Ozone layer present
  • UV rays से सुरक्षा
  • Jet planes fly here

3️⃣ मध्यमंडल (Mesosphere)

https://images.openai.com/static-rsc-4/Ty1Em1lWTeDqYYS4CdY-RKkcsKjQbkDQUcwW15s8XrTCKlyyUUChivs7UooTmniAAEDVv_-uLmmzGkTc0mi_uHla4UnplrAittguFZDF8-qc7oKo2Pi_4Mo-tZnYPXEvFjJ_p9ZZ3TsN7Km7EXeLeRotuc-Eb1pr-XqEpAqhYmvm3KeGqz3V955bQ_BdkClC?purpose=fullsize

https://images.openai.com/static-rsc-4/bnB7SzRZ3-AwoLGNlvyPZD5dBL1Q9rSw6n6rXWPkk4j-E-NZ0KqZM1UfaGa6do5wODmPoQNDTv_1VhUNeoOAcguxKS-Fo289D6IhOXeEa62LkUNmU6N3dumOZjRBE65ElfH-MyuyESlGOwxQW8YHd383J9re4LPOIjPbgb6oy6vkVM7DWXOQWBDyezyc-xwU?purpose=fullsize

https://images.openai.com/static-rsc-4/VjqQI5pwBjL4-0etmVmhExXutVV042k74WWRGFvCdJZyJbfe1rOjqU64SuqXW5bFyl5N92QwaK4DQoa299CLWupRt6jv6YT_B-syQJ0omIWIZQtppxX4bXos1nK1vlA9DT0m_lRe8sNL2SRGUdwtuF7x1uDFNnnh1LWqEO_qcled8a4XpDG1QnahD-s-Maix?purpose=fullsize

5

  • 50–80 km
  • Meteors burn here
  • Coldest layer

4️⃣ तापमंडल (Thermosphere)

https://images.openai.com/static-rsc-4/5Zgfj8WtdOu1QwhXWwjK1vlZGi1gkhcmyJzcZyvpH9TqHzN6RSQwmCHcj8vmUnPUzEEX01w0LLCbSOHylrJ1k3LTl3rUI4mBi7rKutBccZl6_ZjZ27F9wP8cGEFmH92ICc4AJdqgy25bU2981xPYbNPe1_zNH9h3h32G9cHrd4c-K4AjIytMeaL1Z69eE_h_?purpose=fullsize

https://images.openai.com/static-rsc-4/4AgjjhNEWTrAE1SGr1DeaAz859-6GS3MxxOi6euSjC0R4hyJbUoCl_qSSFM7CcSxPneQw2UxiyiCF2tsK5CEfG73aRrXWTm81tGJSmzoWfYP1do2wDTSeD17xOLgY9fO2vODQmkklC5qeXthzXCPAos5RzIsPnnpUHJoWyO1LkFgLVXNWwEMvuqPgVjtgcYa?purpose=fullsize

https://images.openai.com/static-rsc-4/_Fz5VcpqxFMENg0HXTxtv-uGRkWnf1bEDwPO0iSibARW9NFoIa9sm0UTDJDescibd2V8CZ2Wshni79dVaIB5WPUvo0j-TGdxRv8ZO97mR9AN_185ochP4qK-D_-mT2F81Ejluz_jPoY-JZPY1Kgo_3pb68cm63eVpENYttm7y5BMoEX0pi0-t6F9IrwRODPj?purpose=fullsize

6

  • 80–400 km
  • Ionosphere present
  • Radio communication possible
  • Auroras seen here

5️⃣ बहिर्मंडल (Exosphere)

https://images.openai.com/static-rsc-4/DOIdgors2f4smE8VSekigjKcspSf2Y7U809cQbgyhU1MQARCwepXiBo749UcsAbfwrpyY274RzHPeVUjT9-l9J1fSnmSvJ15YJOXnGWIdMClp3KHH8vgQe_MXxd4C3BCuYbozO_e3Rby0esZkZ_HmJVztoUK7yA4XygJFnnRRGUfg6n9u-qnewXYDIiCcBWZ?purpose=fullsize

https://images.openai.com/static-rsc-4/IFEv3OVIIZQ0Y5DMseiRgeyzSFA5J0mYHzFyjVEft1fVyYC-DdMnLYvFBRHW2g2DnzoOtBRf4jm___WuNzmGa7thS9ohZbu_rdeMlBMRnASEnrMDJyZRtwQp_22xCQ6GfJcmj_3lNX_vF19nQObaIwVy61pB15y9xPRV1povflUXsvQRWI4T3PtQW-g5ImnC?purpose=fullsize

https://images.openai.com/static-rsc-4/Uc6Ehnq_GiI8r9BHIbNw6Vioj-BfzSvHt4dIg5tZ5XHL6ccTtyenCeifyAo1FfLd9BLI1IDB4DuQMtbvK1vOYH_-sf1heiDwv7qalZbfK5TXGGJPsRoyqzmi_Ly9WRgvVAepa1-jlTnOZxlGp2oKGLxNmU-e8s2-uXuZhhG7mwUFCKPn2e1jt4-g18uHbXBn?purpose=fullsize


  • Outermost layer
  • Merges into space
  • Satellites orbit here

📘 In English (Quick Revision)

  • Troposphere → Weather
  • Stratosphere → Ozone layer
  • Mesosphere → Meteors burn
  • Thermosphere → Radio waves, aurora
  • Exosphere → Space boundary

📝 MCQs (10 Questions)

Q1. वायुमंडल की सबसे निचली परत कौन सी है? / Lowest layer of atmosphere?

A. Stratosphere

B. Mesosphere

C. Troposphere

D. Thermosphere

Answer: C

Q2. मौसम परिवर्तन कहाँ होते हैं? / Weather changes occur in:

A. Mesosphere

B. Troposphere

C. Thermosphere

D. Exosphere

Answer: B

Q3. ओजोन परत कहाँ पाई जाती है? / Ozone layer is found in:

A. Troposphere

B. Stratosphere

C. Mesosphere

D. Thermosphere

Answer: B

Q4. उल्कापिंड कहाँ जलते हैं? / Meteors burn in:

A. Stratosphere

B. Thermosphere

C. Mesosphere

D. Troposphere

Answer: C

Q5. सबसे ठंडी परत कौन सी है? / Coldest layer is:

A. Troposphere

B. Mesosphere

C. Thermosphere

D. Exosphere

Answer: B

Q6. रेडियो संचार किस परत में होता है? / Radio communication occurs in:

A. Troposphere

B. Ionosphere

C. Mesosphere

D. Exosphere

Answer: B

Q7. सबसे बाहरी परत कौन सी है? / Outermost layer is:

A. Thermosphere

B. Mesosphere

C. Exosphere

D. Stratosphere

Answer: C

Q8. वायुमंडल में सबसे अधिक गैस कौन सी है? / Most abundant gas in atmosphere?

A. Oxygen

B. Nitrogen

C. CO₂

D. Hydrogen

Answer: B

Q9. जेट विमान कहाँ उड़ते हैं? / Jet planes fly in:

A. Troposphere

B. Stratosphere

C. Mesosphere

D. Thermosphere

Answer: B

Q10. ऑरोरा किस परत में दिखते हैं? / Aurora is seen in:

A. Mesosphere

B. Thermosphere

C. Troposphere

D. Exosphere

Answer: B

🎯 Exam Tip (महत्वपूर्ण टिप)

👉 Trick to remember layers:

"T S M T E" → The Smart Man Travels Everywhere

  • T → Troposphere
  • S → Stratosphere
  • M → Mesosphere
  • T → Thermosphere
  • E → Exosphere


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