The sleeping speaker is compared to a stone on the riverbed; both lie still. The image of being in water is reinforced by these words elsewhere in the poem: "floated"; "rose and fell, as if in water."
Answer:
An observational study, not an experiment.
Explanation:
Researchers investigated reasons why different species of birds begin to sing at different times of the morning. They captured and examined birds of 57 species at different sites around England. They reported that there is a strong relationship between the diameter of a bird's eye and the time it starts singing in the morning: birds with larger eyes tend to start singing earlier.This is an example of An observational study, not an experiment.
I think it is D mild I am just guessing.
Is there anyway that you can type out whatever is in the photo? It will not load