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Assertion (A) : Tropical deciduous trees shed their leaves in the dry season.
Reason (R) : Trees adapt according to climatic conditions and shed their leaves to conserve water in dry season.

  • A.Both (A) and (R) are true, but (R) is not the correct explanation of (A).
  • B.Both (A) and (R) are false.
  • C.(A) is true, but (R) is false.
  • D.Both (A) and (R) are true and (R) is the correct explanation of (A).

Answer: D

Both (A) and (R) are true and (R) is the correct explanation of (A).

Tropical deciduous forests, the monsoon forests, grow where a long dry season follows the rains. Their trees, such as sal, teak and neem, shed their leaves in the dry season.

The reason gives the cause: shedding leaves is an adaptation to the climate. Leaves lose water through transpiration, so a tree without leaves loses far less water when the soil is dry. Because R states why A happens, the option saying R does not explain A is wrong, as are the options calling either statement false.

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