Question

based on the student data, what comment(s) could you make regarding the initial model?
a the sun in the model could be removed and keep the words light energy.
b plants grow better in sunlight than artificial light so no changes should be made.
c the model should be changed: keep the sun and add the word solar before energy.
d the arrows indicating the products of photosynthesis should be smaller when using artificial light.

Explanation:

The bar graph shows plant growth under different light conditions. Sunlight (natural light) and fluorescent (artificial light) are compared. In week 1, week 2, and week 3, plants under sunlight and fluorescent light have relatively higher growth compared to no - light. But the growth under sunlight and fluorescent light is not significantly different in a way that would support the idea that no changes should be made (option B is wrong). Option A and C are about elements not related to the growth data in the graph. Option D is relevant because if plants grow less (as indicated by shorter bars in some cases for artificial light compared to sunlight in a general sense, though the difference is not extremely large), the products of photosynthesis (which are related to growth) could be considered less, so arrows (representing products) could be smaller.

Answer:

D. The arrows indicating the products of photosynthesis should be smaller when using artificial light.