Ecology Online Test – 8




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Biology

Ecology Test - 8

1 / 30

The species confined to a particular region and not found elsewhere is termed as :
एक विशिष्ट क्षेत्र में सीमित रहने वाली जाति जो अन्यत्र नहीं पायी जाती, उसे क्या कहा जाता है?

2 / 30

Eutrophication of water bodies leading to killing of fishes is mainly due to non-availability of :
जलीय निकायों का यूट्रोफिकेशन जिसके कारण मछलियाँ मरने लगती हैं, किसकी उपलब्धता न होने के कारण होता है ?

3 / 30

Which of the following is a characteristic feature of cropland ecosystem ?
निम्नलिखित में से कौन एक कृषिभूमि पारितन्त्र का अभिलक्षण है ?

4 / 30

The mass of living material at a trophic level at a particular time is called :
एक निश्चित समय में एक पोषण स्तर पर जीवित पदार्थ के द्रव्यमान को क्या कहा जाता है?

5 / 30

A system of rotating crops with legume or grass pasture to improve soil structure and fertility is called:-
मृदा संरचना और उर्वरकता में सुधार लाने के लिए फसलों को फलीदार पौधों (लेग्यूम) या घास चारगाह के साथ बदलकर लगाने को क्या कहा जाता है ?

6 / 30

The primary producers of the deep-sea hydrothermal vent ecosystem are :
गहरे समुद्र में उष्णजलीय वेन्ट पारितंत्र में प्राथमिक उत्पादक कौन है ?

7 / 30

In which of the following interactions both partners are adversely affected ?
निम्नलिखित में से किस पारस्परिक क्रिया में दोनों संगी प्रतिकूल रूप में प्रभावित होते हैं?

8 / 30

The term ecosystem was coined by :-
इकोसिस्टम (पारितन्त्र) शब्द सबसे पहले किसने बनाया था ?

9 / 30

Rachel Carson's famous book "Silent Spring" is related to :-
राचेल कारसन की प्रसिद्ध पुस्तक "नीरव वसन्त (साइलेन्ट स्प्रिंग) का संबंध है।

10 / 30

During ecological succession :
पारिस्थितिकीय अनुक्रमण के दौरान :

11 / 30

Which of the following is correct for r-selected species ?
r चयनित जातियों के बारे में निम्नलिखित में कौनसा सही है ?

12 / 30

Which of the following is an example of mutualism?
निम्न में से कौन, सहजीविता का उदाहरण है?

13 / 30

Gause's principle of competitive exclusion states that :
स्पर्धा अपवर्जन का गॉसे नियम कहता है कि

14 / 30

Joint Forest Management Concept was introduced in India during :
संयुक्त वन प्रबन्धन की धारणा भारत में किस दौरान प्रस्तावित की गयी थी ?

15 / 30

Which of the following show inverted pyramid of biomass ?
निम्न में से कौनसा, जैवभार के अवतरण सूची स्तम्भ को प्रदर्शित करता है?

16 / 30

In an ecosystem the rate of production of organic matter during photosynthesis is termed as:
एक परितन्त्र में प्रकाश संश्लेषण के दौरान कार्बनिक पदार्थ के उत्पादन की दर को क्या कहा जाता है ?

17 / 30

Most animals are tree dwellers in a:-
अधिकांश जंतु वृक्षों पर पाए जाते है:

18 / 30

Acid rain is caused by increase in the atmospheric concentration of :
अम्ल वर्षा वातावरण में किसकी सांद्रता की अधिकता के कारण होती है?

19 / 30

The UN conference of Parties on climate change in the year 2012 was held at :
वर्ष 2012 में जलवायु परिवर्तन पर दलों का यू.एन. सम्मेलन कहाँ हुआ था ?

20 / 30

How many hot spots of biodiversity in the world have been identified till date by Norman Myers ?
नॉर्मन मायर्स द्वारा अब तक विश्व में कितने जैव विविधता वाले हॉट स्पॉट पहचाने गये है ?

21 / 30

The UN Conference of Parties on climate change in the year 2011 was held in :-
वर्ष 2011 में मौसम परिवर्तन पर दलों की UN गोष्ठी कहाँ हुई थी ?

22 / 30

Secondary Succession takes place on/in :
द्वितीयक अनुक्रमण कहाँ होता है ?

23 / 30

Which of the following is true?
निम्न में से कौनसा कथन सही है ?

24 / 30

Most animals that live in deep oceanic waters are:
दातर जन्तु जो गहरे समुद्रीय पानी में रहते हैं, वे होते हैं

25 / 30

An association of individuals of different species living in the same habitat and having functional interactions is :
एक ही पर्यावास में रह रही विभिन्न स्पीशीजों की व्यष्टियों का पारस्परिक संबंध और क्रियात्मक क्रिया करना है

26 / 30

Which of the following is the most important cause of animals and plants being driven to extinction ?
जन्तुओं और पादपों की विलुप्ति का निम्नलिखित में से कौनसा एक सबसे मुख्य कारण है ?

27 / 30

Which of the following would appear as the pioneer organisms on bare rocks?
एक नग्न चट्टान पर एक अग्रगामी जीव के रूप में निम्नलिखित में से कौन आयेगा ?

28 / 30

Which is the National Aquatic Animal of India ?
भारत का राष्ट्रीय जलीय प्राणी कौन-सा है ?

29 / 30

The figure is showing relative contribution of various green house gases to total global warming.
दिये गये चित्र में वैश्विक तापन के लिये प्रमुख हरित गृह गैसों का सापेक्षिक योगदान प्रदर्शित किया गया है।
In above diagram find out correct gaseous contribution :-
उपरोक्त चित्र में सही गैसीय योगदान की पहचान कीजिए:

30 / 30

Which the following are most suitable indicators of SO2 pollution in the environment ?
निम्नलिखित में से कौन एक पर्यावरण में SO2 प्रदूषण का सबसे योग्य संकेतक है ?

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