Can someone give me a easy definition of juxtaposition?

1) each morning , dew glistens on the grass. 2) the sun yawns , scanning the horizon for companion clouds. 3) perched high ancient oak trees, startlings and sparrows announce a new day.

Which literary device does orwell most use to support his purpose in writing in this passage? characters, to show that what happens on the farm is fiction allegory, to show similarities between the farm and the soviet union point of view, to show how the characters think about the murders setting, to show that events in the soviet union may have been caused by the economy

What is the following animals could fly over mount ernest