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Essentiale: Biodiversity and Conservation
Iris: Biodiversity and Conservation
Invictus: Biodiversity and Conservation
Biodiversity and Conservation - Mini Q Bank
Biodiversity and Conservation - Essentiale - (New NCERT)
Biodiversity and Conservation - Iris - (New NCERT)
Q. No.

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Pollution may cause extinction debt - future extinction of species due to events in the past.
Reason (R): Extinction debt occurs because of time delays between impacts on a species, such as destruction of habitat, and the species' ultimate disappearance.

In the light of the above statements, choose the most appropriate answer from the options given below :

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false

Subtopic:  Loss of Biodiversity |

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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): The indirect effects of losing many species as well as the diversity of ecosystems in general are enormous.
Reason (R): When biodiversity is lost, the environment loses many species that perform valuable and unique roles in the ecosystem.
In the light of the above statements, choose the most appropriate answer from the options given below :
1. Both (A) and (R)are true and (R) is the correct explanation of the (A).
2. Both(A) and (R) are true but (R) is not the correct explanation of the (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Loss of Biodiversity |
 73%

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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Intermediate frequency or intensity of disturbance in a biological community will maximize diversity.
Reason (R): Only at intermediate levels of disturbance do a mix of colonizers and competitors co-exist.
In light of the above statements, choose the most appropriate answer from the options given below :
1. Both (A) and (R) are true and (R) is the correct explanation of the (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Loss of Biodiversity |
 51%

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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Non-native introduced species always have a negative impact on the ecosystem in which they have been introduced.
Reason (R): Non-native species always become invasive in the introduced ecosystem.
In the light of the above statements, choose the most appropriate answer from the options given below :
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. Both (A) and (R) are False.
Subtopic:  Loss of Biodiversity |
From NCERT

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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): If introduced species evolved under great competition or predation in their native habitat, they are more likely to become invasive in the introduced habitat.
Reason (R): Then the new environment may host fewer able competitors, allowing the invader to proliferate quickly.

In the light of the above statements, choose the most appropriate answer from the options given below :

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and reason are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Loss of Biodiversity |
 69%

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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Island ecosystems are generally more prone to invasion by the introduced species.
Reason (R): Invasion is more likely in ecosystems that was similar to the one in which the potential invader evolved.
In the light of the above statements, choose the most appropriate answer from the options given below :
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.

.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Loss of Biodiversity |

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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Animals like elephants and whales are highly prone to extinction due to over-exploitation.
Reason (R): Large-body-sized animals with low rates of reproduction makes them more susceptible to extinction.

In the light of the above statements, choose the most appropriate answer from the options given below :

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Loss of Biodiversity |
 65%

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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Conserving the biological diversity of the ecological hotspots is very important component of efforts to safeguard the world’s biological heritage.
Reason (R): The hotspots of biodiversity cover a large percentage of the land area of earth.
In the light of the above statements, choose the most appropriate answer from the options given below :
1.  Both (A) and (R) are True and (R) is the correct explanation of (A).
2.  Both (A) and (R) are True but (R) is not the correct explanation of (A).
3.  (A) is True but (R) is False.
4.  Both (A) and (R) are False.
Subtopic:  In Situ Conservation of Biodiversity |  Biodiversity Conservation |
 75%

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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Ex-situ conservation, while helpful in humankind's efforts to sustain and protect our environment, is rarely enough to save a species from extinction.
Reason (R): It is to be used as a last resort, or as a supplement to in-situ conservation.
In the light of the above statements, choose the most appropriate answer from the options given below :
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. Both (A) and (R) are False.
Subtopic:  Ex Situ Conservation of Biodiversity |

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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Biosphere reserves attempt to achieve three interconnected functions: conservation, development and logistic support.
Reason (R): They are legally protected areas where no human activity is allowed.

In the light of the above statements, choose the most appropriate answer from the options given below :

1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. Both (A) and (R) are False.
Subtopic:  Ex Situ Conservation of Biodiversity |

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

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Select Question Set:
filter
Essentiale: Biodiversity and Conservation
Iris: Biodiversity and Conservation
Invictus: Biodiversity and Conservation
Biodiversity and Conservation - Mini Q Bank
Biodiversity and Conservation - Essentiale - (New NCERT)
Biodiversity and Conservation - Iris - (New NCERT)
Q. No.

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