Which element appears in the poem Who Has Seen Wind?

The poem "Who Has Seen the Wind?" by Christina Rossetti does not explicitly mention any specific element. However, it indirectly references several elements through its imagery.

Here are some examples:

* Air: The poem is centered around the concept of wind, which is obviously an element. The wind is described as "invisible," "intangible," and "unseen," further emphasizing its connection to the air.

* Water: The poem mentions "the bending of the trees," which could be caused by strong winds, which in turn could be associated with water, as wind and water often go hand in hand.

* Earth: The poem also talks about "the flowers" which are part of the earth, and "the leaves" which are part of the trees that grow from the earth.

While the poem does not explicitly name any elements, it uses vivid imagery to suggest the presence of multiple elements, particularly air and water.