Lecture Notes: Current Affairs and Static GK

Introduction and General Announcements

• Audio and Video Quality Check: Ensured all students can hear and see the lecture clearly.
• Reminder: Importance of today's lecture on current affairs and static GK for future exams.
  • These will be crucial for exams for the next year.
  • Missing these lectures could be problematic for careers.
• Introduction: Anurag Singh, cracked CGPSC interview, teaching subjects on Unacademy.
• Course Progress:
  • Geography at 5 PM.
  • Quality course finishing on August 15th, at 7:28 PM.
  • A new subject, Indian Economy, starting on August 21st.
  • Code: MG10 for 10% discount on Unacademy courses.
  • Platform Benefits: Access to live classes, various subject courses, weekly tests, daily doubt-clearing sessions.
  • Recommendation: 2 years subscription suggested for undergraduates.

Geography – Types of Wind

1. Permanent Winds

• Also known as Primary Winds or स्थायी पवन in Hindi.
• Characteristics:
  • Do not change direction throughout the year.
  • Examples: Trade Winds (व्यापारिक पवन), Westerlies (पछुआ पवन), Easterlies (पूर्व पवन).

2. Temporary Winds

• Change direction according to the season.
• Examples:
  • Monsoon: Direction changes with seasons, e.g., South-West to North-East.
  • Sea Breeze (समुद्र समीर): Daytime wind from sea to land.
  • Land Breeze (स्थल समीर): Nighttime wind from land to sea.

3. Local Winds (स्थानीय पवन)

• Affect small geographic areas.
• Types:
  • Warm Winds (गर्म हवाएँ) and Cold Winds (ठंडी हवाएँ).
  • Examples of warm winds:
    • Chinook: North America (Canada & USA), near Rocky Mountains, melts snow.
    • Fohn: Alps region (Switzerland), warm and dry wind.
    • Sirocco: From Sahara Desert to Italy, brings red sediments, known for 'Blood Rain'.
    • Harmattan: North-West Africa, reduces humidity, creates pleasant weather.
  • Examples of cold winds:
    • Mistral: France and Spain.
    • Pampero: Argentina.
    • Bora: Italy.

Precipitation (वृष्टि)

Definition

• Process: Falling of water vapor on the earth in different forms (water drops, snow, etc.).
• Forms:
  • Rainfall (जल वृष्टि): Water drops.
  • Snowfall: Snow.
  • Hail: Small ice pellets.

Types of Rainfall

1. Convectional Rainfall (वर्षा)

• Process: Warm air rises, cools, and condenses to form clouds, leading to rainfall.
• Common Area: Equatorial regions (daily occurrence around 4 PM, known as 4 o'clock rain).
• Example: Amazon basin, Congo basin, Indonesia, Malaysia.

2. Orographic Rainfall (पर्वतीय वर्षा)

• Process: Warm moist air rises over mountains, cools, and causes rainfall on windward side, leaving the leeward side dry (rain shadow area).
• Example: Mumbai (windward side) vs Pune (leeward side).

3. Frontal Rainfall

• Process: Warm air mass meets a cold air mass, warm air rises above cold air, causing condensation and rainfall (often leads to heavy rain).
• Areas: Typically seen in regions with varied topography.

Recap and Next Steps

• Doubt Clearing: Addressed student questions and clarified any doubt they had.
• Upcoming Lectures: Discussion about joining the Unacademy Plus course with the Indian Economy module starting soon.
• Encouragement: Emphasized the importance of continued learning and revision.

Important Reminders

• Share and like the lecture for broader reach.
• Join the next lecture to continue with the preparation.
• Utilize the offer codes for discounts on further courses.

Thank you for attending!