Question

When the Sun reaches the point in the sky known as the _______, it is the first day of spring in the northern hemisphere.

Answer 1

The first day of spring in the northern hemisphere is marked by the vernal equinox, when the Sun crosses the celestial equator. This occurs around March 21 each year.

Step-by-step explanation:

The point in the sky known as the vernal equinox marks the first day of spring in the northern hemisphere. On this day, the Sun crosses the celestial equator, and every place on Earth receives roughly 12 hours of sunshine and 12 hours of night. This occurs around March 21 each year.

Learn more about Vernal equinox