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2025 PIB Compiled Current Affairs

Source : Legacy IAS academy

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📌 Today’s Agenda

🕑 2:00 PM – 1000 MCQs Series (Part 4)
9th NCERT One-Liners for RRB JE / ALP / NTPC | SSC CGL / CHSL

🕡 6:30 PM – IB Vocabulary Quiz

🕕 6:45 PM – GS/GK Quiz

Quiz / discussion channel
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🕖 7:00 PM – Science & Tech One-Liners Live for SSC & RRB

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https://youtube.com/live/daQJjooff0o?feature=share

Join Us 7:00 Pm💛

Sci- tech CA 150 liners from PIB

https://youtu.be/eRFxMP1bKww?si=CxphdxrR5CkVu3Zn

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9th NCERT - 1000 Pyq series ! Part - 4

video link :https://youtu.be/eRFxMP1bKww?si=CxphdxrR5CkVu3Zn

✅ Fully Covered 9th NCERT Science – 100 PYQs
📌 Day 04 | 1000 PYQs Series (Tamil + English)

🎯 Useful for: RRB ALP / JE / NTPC / GD | SSC CGL / CHSL / MTS

👨‍🎓 Who can use this?
✔️ Beginners & repeaters
✔️ Students who want strong NCERT basics
✔️ PYQ-based revision for quick scoring

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RRB ALP CEN 01/2025 City Intimation Link (Live Soon)✅

https://rrb.digialm.com//EForms/configuredHtml/33128/97789/login.html

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Video link : https://youtube.com/live/daQJjooff0o?feature=share

In this video & PDF , we cover 100 Most Important Sci-Tech One-Liners (Jan to Dec 2025) sourced directly from PIB.gov.in.

This is a must-watch for all competitive exam aspirants (TNPSC, SSC CGL/CHSL, RRB NTPC, Banking, and UPSC

Schemes pdf : https://t.me/Preparation2Selection/349

Sports : https://t.me/Preparation2Selection/361

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📌 Today’s Agenda


🕖 7:00 PM – 10th Ncert One-Liners 1000 PYQs series Live for SSC & RRB

🕡 8:30 PM – IB Vocabulary Quiz

🕗 8:45 PM – GS/GK Quiz

Quiz / discussion channel
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🚨 SSC MTS 2025 – Exam Today Review
🖥 Exam Interface: Eduquity

📘 English Language

Overall Level: 🟢 Easy
🔹 Vocabulary: 10 Questions
▫️ Idioms & Phrases – 2–3
▫️ One Word Substitution – 2–3
▫️ Synonyms / Antonyms – 4–5
🔹 Cloze Test: 5 Questions
🔹 Error Detection: 4–5 Questions
🔹 Direct–Indirect Speech: 2 Questions
🔹 Active–Passive Voice: 2 Questions

🌍 General Knowledge (GK)

Overall Level: 🟡 Moderate
▫️ Static GK – 12–15 Questions
▫️ Other GK – 4–5 Questions
▫️ Current Affairs – 3–4 Questions
📅 Mostly from 2025 Current Affairs
🔥 Overall Paper: Easy to Moderate
📊 Good attempt possible with proper revision

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https://youtu.be/Lx9WtcVTgXQ

Join us 7:00 Pm - Premiere - 10th NCERT

Today's Quiz agenda

8:30 Pm - Vocab IB

8:45 Pm - Geography

9:00 Pm - Monuments

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🌍 Atmosphere Layers (from Earth upward)
1) Troposphere (0 – 8/18 km)

✅ Lowest layer (closest to Earth)
✅ All weather happens here
✅ Contains 75% of total air + water vapour, dust

📌 Height

Poles: ~8 km

Equator: ~18 km

🔥 Temperature: decreases with height (about 6.5°C per km)

Examples

1)Clouds 🌥

2)Rain 🌧, storms ⛈

3)Winds

Aeroplanes fly in upper troposphere ✈️

2) Stratosphere (18 – 50 km)

✅ Very stable air (no storms)
✅ Contains Ozone layer (O₃) → protects from UV rays
✅ Best layer for flying jets

🔥 Temperature: increases with height (due to ozone absorbing UV)

Examples

Ozone layer

1)Jet aircraft ✈️ (because less turbulence)

2)Weather balloons go up

3) Mesosphere (50 – 80 km)

✅ Coldest layer of atmosphere
✅ Meteors burn here due to friction

🔥 Temperature: decreases with height (can go up to -90°C)

Examples

1)Shooting stars / meteors ☄️ burn here

2)Very thin air, no planes fly here

4) Thermosphere (80 – 700 km)

✅ Very high temperature (can reach 1500°C+)
✅ Contains Ionosphere (important for radio communication)
✅ Aurora happens here

🔥 Temperature: increases strongly with height

Examples

1)Aurora Borealis / Aurora Australis 🌈

2)Radio waves reflection 📡 (AM radio)

3)Some satellites orbit here 🛰

5) Exosphere (700 – 10,000 km)

✅ Outermost layer
✅ Extremely thin air (almost vacuum)
✅ Merges into space

🔥 Temperature not meaningful (very few particles)

Examples

1)Artificial satellites 🛰 (GPS, communication)

2) Space begins gradually here 🚀

⭐️ Easy Trick to Remember Order

T S M T E
👉 Troposphere – Stratosphere – Mesosphere – Thermosphere – Exosphere

Quiz / discussion channel
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video link: https://youtu.be/Lx9WtcVTgXQ

✅ Fully Covered 10th NCERT Science – 100 PYQs
📌 Day 05 | 1000 PYQs Series (Tamil + English)

🎯 Useful for: RRB ALP / JE / NTPC / GD | SSC CGL / CHSL / MTS

👨‍🎓 Who can use this?
✔️ Beginners & repeaters
✔️ Students who want strong NCERT basics
✔️ PYQ-based revision for quick scoring

Join us : @Preparation2Selection ⬅️

Like ❤️| Follow 😍| Share🔥