PLZ HELP
Which of these is the best revision of the sentence??

Write about a scientist and present information including a short biography, contribution,their scientific achievements and contribution to science

Read the passage. (1) the first skateboard was constructed of old roller-skate wheels attached to a piece of wood. (2) improvements were made to the skateboard in 1959. (3) the year that the first commercially made skateboard appeared. (4) soon after, skateboarding began to grow in popularity. (5) in 1963, skateboard manufacturers formed the first professional skateboarding team. (6) that same year, the first organized skateboard competition took place, in california. which is the most effective way to correct the fragment in sentence 3? attach the fragment to sentence 4. attach the fragment to sentence 2. insert the phrase in the united states to the end of the fragment. insert the verb had before the verb appeared.

What is going to happen to all that milk? " said someone. "jones used sometimes to mix some of it in our mash," said one of the hens. "never mind the milk, comrades! " cried napoleon, placing himself in front of the buckets. "that will be attended to. the harvest is more important. comrade snowball will lead the way. i shall follow in a few minutes. forward, comrades! the hay is waiting." in at least 100 words, why do the animals in animal farm refer to each other as "comrades"?