I think the first one is right !.... but the for the other one it's B .
Potential energy depends on molecular size and structures and is inherent properties of the molecules. Hope this help!!!
Answer:
Phototropism refers to the movement of of plant body or parts towards or away from the light. There are two types of phototropism i. e. positive phototropism and negative phototropism.
In positive phototropism, the parts of plant body moves toward light. Movements of radical in the upward direction after seed emergence is the example of positive phototropism.
In negative phototropism, the body part of plant moves away from the light. Roots are the example of negative phototropism.
I’m very sure it would be carbon dioxide, plants use carbon as part of photosynthesis, glucose is there food, oxygen is their afterproduct. So the answer is carbon dioxide