1. The movement of the sunflower in accordance with the path of the sun is due to (a) phototropism (b) geotropism (c) chemotropism hydrotropism

• Soln:

The answer is (a) phototropism

Explanation:

The movement of shoot towards light is called phototropism.

Plant growth in response to gravitational force is called geotropism.

The growth of plant in response to chemical stimulus is called chemotropism. The growth of plant roots towards or away from moisture is called hydrotropism.