पृथ्वी में जैव प्रणालियाँ
12 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

वन्यजीवों के लिए किसी विशेष क्षेत्र की पहचान करने में मदद करने वाला तत्व है?

  • जल
  • जीवों का संगठन (correct)
  • वायुमंडल
  • दिशा
  • किस भू-प्रणाली में अत्यधिक ऊर्जा उत्पन्न होती है?

  • जंगल
  • मरुस्थल
  • घास की भू-प्रणाली (correct)
  • प्राचीन संरचना
  • सूखे क्षेत्रों में कौन-कौन से प्रकार के पेड़-पौधे पाए जाते हैं?

  • सेमल, खजूर
  • नीम और बरगद (correct)
  • महुवा और पीपल
  • काटहल, अमला
  • किस प्रकार के कृषि के कारोबार से वन्य जीवन पर प्रभाव पड़ता है?

    <p>पर्यावरण में परिवर्तन</p> Signup and view all the answers

    किस प्रकार के महत्वपूर्ण मौसमिक परिवर्तन का सम्बंध 'मरुस्थल' से होता है?

    <p>पानी की संकेति</p> Signup and view all the answers

    'तेल' किस प्रकार से 'महसूस' होता है?

    <p><em>'तेल'</em> 'किस' 'किस' 'किष'*</p> Signup and view all the answers

    प्राकृतिक भूमिका के अंतर्गत, जल सफाई, बाढ़ के नियंत्रण, और कार्बन संचयन के लिए कौन सी भूमिका अहम है?

    <p>जलकूपन का महत्व</p> Signup and view all the answers

    समुद्री पारिस्थितिकी में किस तरह की समस्याएं हो सकती हैं?

    <p>ओक्सीकरण और गर्मी में वृद्धि</p> Signup and view all the answers

    मॉरीन एकोसिस्टम पर किसे प्रमुख संक्रमित होने का खतरा हो सकता है?

    <p>पानी का प्रदूषण</p> Signup and view all the answers

    समुद्री पारिस्थितिकी के प्रमुख संक्रमित कारक में से कौन है?

    <p>समुद्र में जल-प्रदूषण</p> Signup and view all the answers

    पेड़-पौधों के संरक्षण के लिए समुद्री पारिस्थितिकी में क्या महत्वपूर्ण है?

    <p><strong>हेमोस्टेटिक प्रक्रिया</strong></p> Signup and view all the answers

    नकलात्मक कारों में से कौन समुन्द्‍री पारिस्‍त्‍हि्ति�्ि� में संक्�ि��्�ि� �्�्�्�्�्�्�््�्�््�्�्�्�्�्�्�्�्�िे� �े � � � � � � � � � � � � � � � � � � � � � �

    <p><strong>हे�ोस�े�ि� प�क�ि</strong></p> Signup and view all the answers

    Study Notes

    Ecosystems in the Earth

    Ecosystems are critical to the health and survival of the planet Earth. They are complex networks of living and non-living components that work together to create a balanced environment. Ecosystems include a variety of habitats, such as forests, deserts, grasslands, wetlands, and marine ecosystems, each with its unique set of species and interactions.

    Forest Ecosystems

    Forests are one of the most diverse ecosystems on Earth, covering approximately 31% of the world's land surface. They provide habitat for a vast array of plant and animal species, regulate the Earth's climate, and play a crucial role in the global carbon cycle. Despite their importance, forests are under threat due to deforestation, which is caused by human activities such as logging, agriculture, and urbanization.

    Desert Ecosystems

    Deserts are the hottest and driest ecosystems on Earth, covering about one-fifth of the world's land surface. They are characterized by low rainfall, extreme temperatures, and limited plant and animal life. Despite their harsh conditions, deserts are home to a variety of unique species adapted to survive in these extreme environments.

    Grassland Ecosystems

    Grasslands cover about one-quarter of the world's land surface and are found in both temperate and tropical regions. They are characterized by large expanses of grasses and herbaceous plants, and are home to a variety of plant and animal species, including many that are not found in forests or deserts. Grassland ecosystems are threatened by overgrazing, conversion to croplands, and urbanization.

    Wetland Ecosystems

    Wetlands are ecosystems that are saturated with water, either permanently or seasonally. They include swamps, marshes, and bogs, and are home to a wide variety of plant and animal species. Wetlands are important for water purification, flood control, and carbon sequestration, but they are also threatened by drainage, conversion to croplands, and urbanization.

    Marine Ecosystems

    Marine ecosystems cover about 71% of the Earth's surface and are home to a vast array of plant and animal species, including fish, whales, and coral reefs. They are threatened by overfishing, pollution, and climate change, which is causing ocean acidification and warming.

    Climate Change and Ecosystems

    Climate change is having a significant impact on ecosystems around the world. Rising temperatures, changing precipitation patterns, and increased extreme weather events are affecting the distribution, abundance, and diversity of plant and animal species. This, in turn, is affecting the functioning of ecosystems and their capacity to provide essential services, such as water purification, carbon sequestration, and habitat for wildlife.

    Conclusion

    Ecosystems are complex networks of living and non-living components that work together to create a balanced environment. They are home to a vast array of plant and animal species and provide essential services that are critical to the health and survival of the planet Earth. However, ecosystems are under threat from human activities such as deforestation, urbanization, and pollution. Climate change is also having a significant impact on ecosystems, affecting their distribution, abundance, and diversity. It is important that we take steps to protect and conserve ecosystems, for the sake of future generations.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    इस क्विज़ में पृथ्वी पर जैव प्रणालियों पर विस्तार से चर्चा की गई है। वन, रेगिस्तान, घास के मैदान, ऊष्णकटिबंधीय क्षेत्र और समुद्री पर्यावरण के प्रणालियाँ समाहित हैं।

    More Like This

    Use Quizgecko on...
    Browser
    Browser