Final answer:
The summer solstice, around June 21, marks the longest day of the year in the Northern Hemisphere due to the Earth's axis tilting towards the Sun.
Explanation:
Summer solstice is the name given to the longest day of the year in the Northern Hemisphere. It occurs around June 21 when the Earth's tilted axis is pointing directly toward the Sun, resulting in the Sun being highest in the sky and providing the most daylight hours.
Learn more about Summer Solstice here:
https://brainly.com/question/44008366
