Because you have to do frame by frame movements and depending on how smooth you want your animation to be would depend on how many frames are required.
Answer: The verb would be appear but it is connected to "often" therefore your answer is linking.
Explanation: Often is being used as an adjective in this sentence to describe the word appear.
Answer:
Leonardo da Vinci and Michelangelo
Answer:
Hey srry It kicked me out of my account lol
Explanation: