Answer:
The main idea is the central, or most important idea in a story, paragraph, or passage
Explanation:
Take "Clowns" for example clowns is the topic. The main idea would be "Clowns are enjoyable for some, scary for others.
The answer is A. Harrison is on a fixed-interval schedule of reinforcement.
Short run is a period of time when we can change only variable factors not fixed factors.
Essay
a short piece of nonfiction prose that examines a single subject usually persuasive
5 important reasons to add vegetables to a diet in hindi is because they a healthy choice and you should eat healthy and they help a lot by lowering heart disease and many more