Question

what would happen if the earth were not tilted to the angle of 66.5°on its orbital plane?​

Answer 1

Answer:

In this case the plane of the Earth's poles would always be perpendicular to the sun. The sun would always be just on the horizon 24 hours a day on every day at the poles.

Answer 2

Answer:

In this case the plane of the Earth's poles would always be perpendicular to the sun. The sun would always be just on the horizon 24 hours a day on every day at the poles.