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Q: Read the given statements (Assertion and Reason) carefully and select the most appropriate option with respect to them. Assertion (a) Š Trees grow against gravity Reason (R) Š Nature defines gravitational law
  • A. Both A and R are true and R is the correct explanation of A
  • B. A is true but R is false
  • C. Both A and R are false
  • D. Both A and R are true and R is not the correct explanation of A
Correct Answer: Option B - Trees grow against gravity. The reason behind it is termed as Geotropism. It is a coordinated process of differential growth by a plant in response to gravity pulling on it. If the growth is in the direction of gravity then it is positive geotropism and if it is in the opposite direction of gravity then it is considered as negative geotropism. Nature does not defines gravitational law. Hence A is true but R is false.
B. Trees grow against gravity. The reason behind it is termed as Geotropism. It is a coordinated process of differential growth by a plant in response to gravity pulling on it. If the growth is in the direction of gravity then it is positive geotropism and if it is in the opposite direction of gravity then it is considered as negative geotropism. Nature does not defines gravitational law. Hence A is true but R is false.

Explanations:

Trees grow against gravity. The reason behind it is termed as Geotropism. It is a coordinated process of differential growth by a plant in response to gravity pulling on it. If the growth is in the direction of gravity then it is positive geotropism and if it is in the opposite direction of gravity then it is considered as negative geotropism. Nature does not defines gravitational law. Hence A is true but R is false.