What do we call a more polite word to express something unpleasant? (example: to say "let go" instead of "you're fired")

Which website most likely provides reliable information about climate change?

Identify the sentence in which the underlined word or words are punctuated incorrectly. a) pam was (well prepared) for the debate. b) she had (read three quarters) of the material more than once. c) she has always been (self assured). d) the winner needs a (two-thirds) majority of the votes.

Iwanna listen to music but i have a migraine. are there any songs that would be good for me to listen to that wont make the migraine worse