What shape does a population pyramid take for a rapidly growing population?
What shape does a population pyramid take for a rapidly growing population?
तीव्र गति से बढ़ती जनसंख्या के लिए जनसंख्या पिरामिड किस का आकार होता है?
Detailed Solution & Logic
Triangular shape / त्रिकोणीय आकार
Explanation / व्याख्या
A rapidly growing population has:
- High birth rate
- Large number of children
- Smaller number of old people
Because of this, the population pyramid has a broad base and narrow top, giving it a triangular shape.
तीव्र गति से बढ़ती जनसंख्या में:
- जन्म दर अधिक होती है
- बच्चों की संख्या अधिक होती है
- वृद्ध लोगों की संख्या कम होती है
इसी कारण जनसंख्या पिरामिड का आधार चौड़ा और ऊपरी भाग संकरा होता है, जिससे इसका आकार त्रिकोणीय दिखाई देता है।
Population Pyramid / जनसंख्या पिरामिड
A population pyramid is a graph that shows:
- Age distribution
- Sex distribution of population
जनसंख्या पिरामिड एक ग्राफ है जो दर्शाता है:
- आयु संरचना
- लिंग संरचना
Extra Facts / अतिरिक्त तथ्य
Types of Population Pyramids
जनसंख्या पिरामिड के प्रकार
1. Expanding Population Pyramid
(तीव्र बढ़ती जनसंख्या)
- Shape: Triangle
- High birth rate
- Example: Developing countries
- आकार: त्रिकोण
- जन्म दर अधिक
- उदाहरण: विकासशील देश
2. Stable Population Pyramid
(स्थिर जनसंख्या)
- Shape: Rectangular
- Birth rate and death rate are almost equal
- आकार: आयताकार
- जन्म और मृत्यु दर लगभग समान
3. Declining Population Pyramid
(घटती जनसंख्या)
- Shape: Inverted triangle / Urn shape
- Low birth rate
- More old-age population
- आकार: उल्टा त्रिभुज / कलशाकार
- जन्म दर कम
- वृद्ध जनसंख्या अधिक
Important Example / महत्वपूर्ण उदाहरण
Countries like:
- India (earlier decades)
- Nigeria
- Bangladesh
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