Answer:
The plot events that are key parts of chapter 7 are:
* Squealer announces that the animals will no longer sing "Beasts of England.”
* The animals are told that Snowball visits at night and sabotages their efforts.
* Napoleon comes to an agreement with humans to sell them four hundred eggs a week.
* Napoleon orders the dogs to kill several of the animals that questioned his authority
Explanation:
"Animal Farm" by George Orwell is the story of a rebellion against injustice and a fight for their rights, during the unit 7 the events that show the dominion of Napoleon over the other animals in the farm, but as the story advances the rebellion comes to end and the animals need to reorganize themselves and change a few things.
King using the phrase "flight's ground crew" refers to the people who have sacrificed a lot to make the freedom movement take flight. They are the people who have given their all but are not recognized for their sacrifices.
The answer to these question is the Arctic Ocean