Ill give brainliest. Please help. If i get all my assignments done i finally get my phone back and to talk to somebody, thank you :( What is the BEST reason for a writer to include a video on a scientific website?
to show movement or activity
to describe difficult terms accurately
to help visitors visualize an object
to report on research more accurately

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.