A the main idea of the essay
Answer: A concept designed to minimize three-month summer learning losses, year-round education maximizes the use of public facilities by dividing the school attendance days into rotating instruction and vacation segments.
When migrating, birds usually migrate when there's not enough food, shorting of daylight, and when it's getting colder in winter. Birds that migrate do so in the late summer through the fall and in the late winter through the spring. Birds and use a radical pair-based compass to "see" the Earth's magnetic field when migrating.
They both challenged the status quo of poetic expression.
