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Science Assertion - Reasoning (1 Marks)

Management of Natural Resources · MP Board (MPBSE) STD 10 (Madhya Pradesh - English Medium). 3 questions.

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Assertion - Reasoning (1 Marks)

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3 questions · timed · auto-graded

MCQ 11 Mark
In the following questions, a statement of Assertion is given by the corresponding statement of Reason. Of the statements, mark the correct answer as :
Assertion : Forests are the hotspots of biodiversity.
Reason : They provide habitat to numerous species of plants and animals.
  • ✓
    If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  • B
    If both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
  • C
    If Assertion is true, but Reason is false.
  • D
    If Assertion is false, but Reason is true.
Answer
Correct option: A.
If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
A biodiversity hotspot is a region of the Earth that is extremely biologically diverse and also under severe threat due to habitat loss, climate change, or extensive species loss. Forest serves as the reservoir of biodiversity containing different species of plants, animals and all other sorts of living organisms.
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MCQ 21 Mark
In the following questions, a statement of Assertion is given by the corresponding statement of Reason. Of the statements, mark the correct answer as :
Assertion : Wild animals have increased greatly in number.
Reason : These wild animals are killed by poaching.
  • A
    If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  • B
    If both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
  • C
    If Assertion is true, but Reason is false.
  • ✓
    If Assertion is false, but Reason is true.
Answer
Correct option: D.
If Assertion is false, but Reason is true.
The number of wild animals on Earth has halved in the past $40$ years, according to a new analysis. Creatures across land, rivers and the seas are being decimated as humans kill them for food in unsustainable numbers, while polluting or destroying their habitats, the research by scientists at $\ce{WWF}$ and the Zoological Society of London found.
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MCQ 31 Mark
In the following questions, a statement of Assertion is given by the corresponding statement of Reason. Of the statements, mark the correct answer as :
Assertion : Coal is used for household purposes like cooking.
Reason : Petroleum is used in thermal power plants.
  • A
    If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  • B
    If both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
  • C
    If Assertion is true, but Reason is false.
  • ✓
    If Assertion and reason both are false
Answer
Correct option: D.
If Assertion and reason both are false
Coal has many important uses worldwide. The most significant uses of coal are in electricity generation, steel production, cement manufacturing and as a liquid fuel. Steam coal $- $ also known as thermal coal $-$ is mainly used in power generation.
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