Difference in level of intelligence, morality and of course power. The animals have a social class system, even though it is never mentioned by the animals. This book was written about the Russian Revolution of 1917 and symbolises the political system of communism and its flaws.
Adverb. It’s modifying the “worked” not the “we”
According to its definition, the time context refers to various conditions and the climate of opinion that surround the text's creation and event's occurrence. Time context is needed to let the reader know why particular events are important at the time an event happened.
It is 2,000 pounds in a ton.
