ASSERTION AND REASON
DIRECTION : In the following questions, a statement of
assertion is followed by a statement of reason. Mark the
correct choice as :
(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.
(d) If Both assertion and reason are false.

1. Assertion : Forests plays a key role in the ecological
   system.
   Reason : Forest are the primary producers on which
   all other living beings depend.
   Ans : (a) Both assertion and reason are true and
   reason is the correct explanation of assertion.
   The plants, animals and micro-organisms re-create
   the quality of the air we breathe, the water we drink
   and the soil that produces our food without which we
   cannot survive. Thus, we are very much dependent on
   this system for our own existence.
2. Assertion : Neglect of our environment has led to the
   destruction and extinction of many species of animals
   and plant life.
   Reason : Decreasing Forest cover area is a major
   reason of destruction of species.
   Ans : (a) Both assertion and reason are true and
   reason is the correct explanation of assertion.
   Vanishing forests are the major reason for the extinction
   of species of animals and plant life. Thus, neglecting
   our environment has led to dire consequences.
3. Assertion : Depletion of forests causes a lot of danger.
   Reason : Forests are vital for the quality of life and
   environment.
   Ans : (a) Both assertion and reason are true and
   reason is the correct explanation of assertion.
   Depletion of forests causes a lot of danger. Water
   scarcity, drought and deforestation induced floods are
   some of the dangers. Thus, forests are vital for the
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   Chap 2.2 : Forest and Wildlife Resources www.cbse.online
   quality of life and environment.
4. Assertion : Large-scale development projects have
   also contributed significantly to the loss of forests.
   Reason : Large scale development projects doesn’t
   inundate hectares of forest.
   Ans : (c) Assertion is true but reason is false.
   Clearing of forests is still continuing with projects
   like the Narmada Sagar Project in Madhya Pradesh
   which would inundate large areas of forests. Thus,
   contributing significantly to the loss of forests.
5. Assertion : Himalayan Yew is a medicinal plant
   Reason : It has healing qualities.
   Ans : (a) Both assertion and reason are true and
   reason is the correct explanation of assertion.
   A chemical compound called ‘taxol’ is extracted from
   the bark, needles, twigs and roots of this tree, and it
   has been successfully used to treat some cancers.
6. Assertion : We need to conserve our forests and
   wildlife.
   Reason : Rapid decline in wildlife population and
   forestry has been observed.
   Ans : (a) Both assertion and reason are true and
   reason is the correct explanation of assertion.
   Conservation preserves the ecological diversity and
   our life support systems and also preserves the genetic
   diversity of plants and animals for better growth of
   species and breeding. Thus, there is a dire need for
   conservation our forests and wildlife.
7. Assertion : Tiger population is not on the verge of
   extinction.
   Reason : Tiger population in forests is increasing
   rapidly day by day.
   Ans : (d) Both assertion and reason are false.
   Tiger population is on the verge of extinction and the
   major threats to tiger population are numerous, such
   as poaching for trade, shrinking habitat, depletion of
   prey base species, growing human population.
8. Assertion : Destruction of forests and wildlife resulted
   into the loss of cultural diversity.
   Reason : The conservation of forests and wildlife is
   essential to provide a better quality of life.
   Ans : (b) Both assertion and reason are true but
   reason is not the correct explanation of assertion.
   The destruction of forests and wildlife has affected the
   livelihood of many communities who are dependent oh
   forests. Thus, resulting in loss of cultural diversity and
   severe droughts and floods. However the Season does
   not explain the assertion.
9. Assertion : The tree is a peculiar organism of unlimited
   kindness.
   Reason : Trees are living organisms which makes no
   demands for its sustenance, and extends generously
   the products of its life activity.
   Ans : (a) Both assertion and reason are true and
   reason is the correct explanation of assertion.
   It affords protection to all beings, offering shade even
   to the axe men who destroy it. Therefore, the tree
   is an organism of unlimited kindness that extends
   generosity to humanity.