Question

94. The action of the roots of a tree in growing into a drain pipe is an
example of:
A. : positive hydrotropism.
B. negative hydrotropism.
c. positive geotropism
Di negative geotropism
E negative phototropismm
(511792​

Answer 1

Answer:

positive geotropism

Explanation:

Growth movements of plants in response to an external stimulus are called tropic movements. The roots show positive geotropism because root always moves towards the ground in the direction of gravity. Roots are negatively phototropic and positively hydrotropic. Thus the correct answer is option A.