Define "activity". The obvious answer would probably be building the pyramids. Although there's no real proof or answer to how they were built, it likely utilized a vast amount of peasants and slaves.
hot and old and ancient
no
Meat was required.
in grece
Cooperation between Sparta and Athens during the classical Greek era created peace and prosperity in Greece while conflict between Sparta and Athens broke ancient Greece and began the downfall of the society. These events defined the course of ancient Greek history.
The ancient Egyptians built enormous pyramids to protect important mummies.
Farming
Citizen soldiers, who were heavy infantry and called out for operations when required, and underwent monthly training activity; augmented by slave light infantry and archers. A large war fleet manned by citizens and hired seamen.
i really dont know
Very few people were literate in Ancient Egypt. As they used hieroglyphs, not an alphabet, the number of signs that had to be learnt was enormous. It was at lengthy process, carried on a schools for scribes.
Cooperation
Ancient Greece according to many is the best ancient civilization. It is because though Greece has faced enormous wars, still they managed to be there and they still proved to be a strong nation up to now. Also it is the birthplace of many famous people like Alexander the Great and Socrates.