What's up peeps?

Which detail from the text best demonstrates the effect of totalitarianism on the animals? "progress was made in the dry frosty weather that followed." "it had been decided to build the walls three feet thick." "they were always cold, and usually hungry as well." "for a long time the quarry was full of snowdrifts and nothing could be done."

How does the author introduces his idea of fish depletion in the first few pages of world without fish?

What are the similarities of physical and chemical change ?