It is less vivid; "raced after" emits a feeling of either action, suspense, or energy. It allows the reader to connect and fully understand what is going on. "ran after" is vague and emits little high energy.
Answer:
Making a list of places to go
Explanation:
It is a big square surrounded by a big stadium
Answer:
the dog was frightened by the sudden noise
Answer:
Vegetation grows in tropical climates, grows abundantly, and is lush.
Explanation:
Pretty simple once you try saying it out loud.