Idont know what this stanza means and need with the analysis!

my heart aches, and a drowsy numbness pains
my sense, as though of hemlock i had drunk,
or emptied some dull opiate to the drains
one minute past, and lethe-wards had sunk:
'tis not through envy of thy happy lot,
but being too happy in thine happiness,—
that thou, light-winged dryad of the trees
in some melodious plot
of beechen green, and shadows numberless,
singest of summer in full-throated ease.

In a short story the narrator's word choice

Shauna has collected a variety of sources for her research about charlie chaplin’s impact on american cinema. in performing her preliminary evaluation of each source, shauna should-thoroughly review and examine the content.-perform a quick search to determine the author’s reliability.-check whether the author agrees with experts on the subject.-decide whether it will be useful in her final essay.

Oceans produce approximately 80 percent of the oxygen our planet needs to support animal life. pollution that reaches the ocean through dumping, oil leaks, runoff, and other processes interferes with that oxygen production and poses a real threat to the oxygen content in our atmosphere. if the oxygen content decreases, it is likely that carbon dioxide will increase. this could have dramatic consequences for life as we know it. which does this passage indicate causes a decrease of oxygen in the atmosphere?