Final answer:
An effective social media post grabs attention and provides a clear call to action, while an ineffective post lacks valuable content and fails to engage the audience.
Step-by-step explanation:
An effective social media post:
Twiter: Exciting news! My new book is now available for pre-order. Check out the link below to reserve your copy today. #newbook #preorder
A review of the effective post: The post effectively grabs attention and provides a clear call to action with relevant hashtags.
An ineffective social media post:
FB: I just ate a sandwich for lunch. #yummy #foodlove
A review of the ineffective post: The post lacks valuable content and fails to engage the audience.